Answer:
The correct answer is: Eccentric phase.
When talking about movement, we are talking about the activation of muscle fibers in order for this process to happen. In order for this to happen, motor neurons must activate the phases of muscle excitation, contraction and relaxation, so that the sarcomeres, and thus the fibers, can generate movement.
In essence, there are three stages, or phases, to complete muscle movement: the concentric phase, which is when the muscle fibers are excited and begin the process of contraction. This means the muscle fibers will contract and generate movement, generating a shortening. Then we have the isometric stage, a moment in which there is no longer any more shortening of the muscle fibers, so basically, the movement is held and there is no further contraction, but neither is there relaxation of the muscle fibers. Finally, we have the eccentric phase. This phase is characterized precisely because it is the moment when the muscles begin to return to their resting position.
Which of the following terms is/are associated with the body’s capacity to produce ATP aerobically
a. maximal oxygen uptake
b. aerobic capacity
c. oxygen consumption
d. all of the above
List the types of proteins found in the cell membrane.
Internalized homophobia can be defined as _______
a.
a fear of emotional intimacy with the same sex
b.
a fear of physical intimacy with the same sex
c.
self-hatred because of one's homosexuality
d.
homosexuals' hatred toward the opposite sex
0.75 points
Answer: c. Self-hatred because of one's homosexuality
Explanation:
Internalized homophobia is a feeling of self disgust or hatred which is also called as a feeling of internal oppression. This appears when a person a person develops sexual desire for the person of a same sex that is development of homosexuality. People become gay, lesbian and bisexual. This is related with feeling of stress, anger and unsatisfaction.
The build-up of ketone bodies is a result of?
A) Acetoacetic acid being broken down to acid phosphatase
B) The inability of the body to properly break down glucose in the liver
C) The inability of the body to break down fatty acid in the heart
D) A liberation of co A part of the acetyl group which cannot diffuse out of cells and the conversion of acetoacetic acid into beta hydroxybutyric acid
Answer:
they are produced by the liver, the body makes Ketone bodies when there is not enough insulin in the blood and break down fat instead of sugar for energy - acetone is a toxic acidic chemical
The specific color of blood is most closely associated to
A) Its pH
B) Its oxygen content
C) Its hematocrit
D) The age of the individual
Answer:
B. It's oxygen content
Explanation:
The specific color of blood is most closely associated to its oxygen content because the more oxygen present in your blood, the more dark red your blood would be...
If you have less oxygen in your blood, the blood wouldn't be as dark red...
Where does spongy bone occur in the skeleton?
spongy bone is found in the bones of the skull, sternum, vertebrae, the pelvis, the lining of the marrow cavity and the epiphysis.
Why are infections more common with compound fractures than with simple fractures?
Answer: Compound fractures = open fractures
Explanation: This means that the area is more suseptable to infection. Because it is open, there is more room for an infection to burrow in and spread.
True or False. A foramen is a space or gap between two or more bones.
Answer: I wouldn't say BETWEEN bone
Explanation:
it is a opening or passage especially in a bone.
What two lobes does the central sulcus separate?
Select the correct answer.
Which of the following statements is a scientific claim?
A.
The early solar system had large amounts of water; so, the oldest objects in the solar system should also be abundant in water.
B.
The mass of the universe is much greater than current models predict; it is not possible to explain this inconsistency.
C.
Planet Earth is abundant in water, but there is no way to scientifically determine from where Earth's water originated.
D.
Earth is shaped like a sphere even if not all of the scientific observations related to its shape support this idea.
Answer:
B maybe
Explanation:
Answer:
Option A, The early solar system had large amounts of water; so, the oldest objects in the solar system should also be abundant in water.
Explanation:
A scientific claim is a evidence based statement that is tested and tried through experiment and reasoning.
Among all the given options none of the statement except the option A has a logical reasoning support or backup.
However, in option A the statement "old object in solar system are abundant of water" is based on the reason that "early solar systems had large amount of water"
Thus, option A is correct
On which bone does Jugular Foramen occurs?
Answer:
The petrous temporal bone
Explanation:
Jugular Foramen is a cavity or aperture which is formed at the junction of two bones of the skull. Jugular Foramen occurs at the junction of the occipital bone and petrous temporal bone. The petrous temporal bone has carotid foramen. The Jugular Foramen is located posterior to the carotid foramen but anterior to the occipital bone of the skull.
What is most common white blood cell?
A. lymphocyte
B. neutrophil
C. basophil
D. monocyte
CD8 helps with recognition of which of the following molecules on the surface of a cell?
Question 12 options:
A)
TLRs
B)
selectins
C)
MHCII
D)
MHCI
E)
BCRs
Answer:
MHCI
Explanation:
Major histocompatibility complex I (MHCI) is present on the nucleated cells of the body. Endogenous pathway represents the pathway of MHC class I molecules.
MHCI display peptide fragment of proteins to the cytotoxic T cells with the help of CD8 ( Cluster of differentiation). CD8 binds with the MHCI and expressed on the surface of cytotoxic T cells.
Thus, the correct answer is option (D).
A long, thin, oblique muscle of anterior thigh
a. Sartorius
b. Masseter
Answer:
The answer is A Sartorius
Explanation:
Check out this quizlet. It helps.
https://quizlet.com/168886044/anatomy-physiology-muscles-key-term-matching-flash-cards/
Your skin has multiple layers of epithelial cells. The apical cells (closest to the surface, "top") are "flat" and the basal cells (farther from surface bottom") are "as tall as they are wide". Another way to describe this epithelium would be to state:
a. Simple columnar epithelium
b. Simple cuboidal epithelium
c. Simple squamous epithelium
d. Stratified columnar epithelium
e. Stratified cuboidal epithelium
f. Stratified squamous epithelium
g. Simple transitional epithelium
Answer:
c. Simple squamous epithelium ?
Explanation:
The apical cells are "as tall as they are wide". Another way to describe this epithelium would be to state simple squamous epithelium. Thus, option C is correct.
What is epithelium tissue?
The epithelium tissue has been defined as the form of the tissue present in the body and it plays a vital role in the covering of all internal as well as external surface of body, which includes hollow organs and lines body cavity. The structure of the epithelial cells are said to be combined together by tight junctions as well as adhering junction and attached to extra cellular matrix.
Tissue is the combined structure of cell and later tissue combined together to form organ and than organ system is formed to perform various functions of the body. The structure of epithelial cells are they combined together by tight junctions as well as adhering junction and attached to extra cellular matrix.
Therefore, The apical cells are "as tall as they are wide". Another way to describe this epithelium would be to state simple squamous epithelium. Thus, option C is correct.
Learn more about epithelium tissue here:
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Name, in order, the five main components of a reflex arc. Briefly explain what each component is or does.
Answer:
The five parts of reflex arc are sense organs (receptor) followed by sensory neuron, then the inter neuron, motor neuron and lastly by the muscles/body organs.
Explanation:
The five parts of reflex arc are -
a) The first part is the receptor which comprises of sense organ whose function is to sense the impulse and pass the perceived information to the sensory neuron.
b) The sensory neuron then carry the information from sense organs to the central nervous system (CNS) for processing.
c) The inter neurons carry the information from CNS to the motor neuron
d) After receiving processed information/ action potential from inter neuron it is sent to the other parts of the body and away from the CNS .
e) Lastly, the muscles/body organs which receive information from the motor neuron, enact as directed by the CNS as a response to the impulse received.
1. Certain species of fish are unsafe to consume in high quantities because these fish A. ingest other fish that are poisonous to humans. B. contain vitamins that aren't water-soluble and can cause toxicity. C. are endangered species. D. have high levels of metals in them from cancer-causing pesticides.
Answer:
D
Explanation:
I would say D because chemicals from farms run off into local waters where you catch fish from. These chemicals were not made for human consumption, some were made to keep animals off farms.
Ingest other fish that are poisonous to humans, so that they are poisonous and unsafe to consume.i.e, option A is correct.
What is food chain?Food chain, in ecology, the sequence of transfers of matter and energy in the form of food from organism to organism. Food chains intertwine locally into a food web because most organisms consume more than one type of animal or plant.
In a food chain a primary consumers eats the producer, a secondary consumer eats the primary consumer and then the tertiary consumer eats the secondary consumer. The level of poison will increase as it goes down the food chain so the tertiary consumer will have the highest amount of toxins in it.
Learn more about food chain here:
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The frequency of a deleterious recessive disease in a large, randomly-mating population is 1 in 1000. Calculate the probability of an individual being a carrier for this recessive disease?
a) 0.74
b) 0.06
c) 0.03
d) 0.001
e) All individuals will be homozygous
Answer:
The frequency of carriers for the recessive disease is 0.062.
Explanation:
The frequency of recessive allele in the generation is 1 in 1000.
Let the frequency be q²=1/1000.
q=√1/1000.
q=0.032.
Let p be the frequency of dominant allele
p+q=1 ( According to hardy weinberg equillibrium)
p=1-q
p= 1-0.032
p=0.968.
The frequency of carriers for the recessive disease = 2×p×q
=2×0.032×0.968
=0.062.
In the alveoli, you would expect to find the alveolar:
a. PO2 greater than the capillary PO2 before exchange.
b. PCO2 greater than the capillary PCO2 before exchange.
c. PO2 greater than the alveolar blood after exchange.
d. All of the above.
Answer:
A
Explanation:
Before exchange, it is expected that the capillaries (that have deoxygenated blood) will have more carbon dioxide while the lungs will have more oxygen. This allows for oxygen to diffuse into the capillaries while carbon dioxide diffused into the lungs during the exchange.
If a transgene is inserted into an animal embryo
only the non-reproductive cells should contain the transgene DNA.
the animal should become sterile as an adult.
every cell should contain the transgene DNA.
the transgene protein will be expressed in all cells.
only the sperm and egg cells should contain the transgene DNA.
Answer:
Every cell should contain the transgene DNA.
Explanation:
The embryo is the very early stages of growth and development of an organism. An embryo develops from a zygote and contains about 16 cells. Inserting transgenes in these cells, therefore, will ensure that all the cells that divide from the embryo by mitosis have the transgene. The whole organism will, therefore, bear the transgene including its gametes. This foreign gene will, therefore, be inherited by the offspring of the organism.
Mrs. Jones blood typing results showed agglutination with the plasma containing anti - B antibodies only. What is her blood type and what blood can she receive in order to save her life?
Answer:
Mrs Jones Blood type= B type.
Safe transfusion from: B and O blood type.
Explanation:
In the given example, the anti-B antibodies are present in the donor plasma. Since anti-B antibodies react with B antigen present on the RBCs of blood, Mrs. Jones should have B antigen on the surface of her RBCs. The blood type with only B-antigen on the RBC's surface is blood type "B".
Hence, her blood type is "B" type which has B antigens that react with anti B antibodies of the donor plasma causing agglutination and hemolysis of RBCs.
She can get the blood of B and O blood types. Blood type O is a universal blood type as it does not have B or A antigens on the surface of its RBCs to initiate the agglutination.
As you lift a heavier weight, what is happening? (Select all that apply.) a. You increase the number of muscle fibers activated in each motor unit. b. You increase the number of motor units that are active in each activated muscle. c. You increase the frequency of action potentials in your motor neurons. d. You increase the diameter of muscle fibers activated in a motor unit.
What valve prevents back flow into the left ventricle of the heart?
A) pulmonary valve
B) mitral valve
C) tricuspid valve
D) aortic valve
Answer:
Option D, aortic valve
Explanation:
The location of aortic valve i.e between the aorta and left ventricle, allows it to stop the blood from flowing back into the left ventricle.
The other options are incorrect as -
Pulmonary valve being located between the pulmonary artery and right ventricle, stop the blood from flowing back into the right ventricle.
The tricuspid valve and mitral valve stops the blood from flowing back into the right atria and left atria respectively.
Hence, option D is correct.
Why is the action of phagocytes considered a nonspecific response?
Answer:
Since phagocytes are effective against any type of infectious/toxic agent.
Explanation:
Phagocytes are the cells of the immune system that are involved in the non-specific immune response. These cells serve to engulf and kill any pathogenic or infectious microbe that has entered the body. Since phagocytes do not require the presence of specific antigens or pathogens to mount the immune response, their action is "non-specific response".
Answer:
D. It is not a response to a specific type of pathogen.
Explanation:
this is the answer to this question on edge2021 :)
Neuroglia that control the chemical environment around neurons by buffering potassium and recapturing neurotransmitters are ________. A. oligodendrocytes B. microglia C. astrocytes D. Schwann cells
Answer:
Astrocytes
Explanation:
Astrocytes are star shaped glial cells and are the most abundant glial cells in the group. Thy have gap junctions with pottasium and calcium channels that refulate the concentration of the ions in the environment creating a buffer that ensures the neurons function effectively during saltatory condution when ions are released outside their membrane. They also capture any unused neurotransmitters during cell communication by neurons at the synaptic junctions.
Which muscle is responsible for inhalation ?
Answer:
The muscles of respiration are those muscles that contribute to inhalation and exhalation, by aiding in the expansion and contraction of the thoracic cavity. The diaphragm and, to a lesser extent, the intercostal muscles drive respiration during quiet breathing.
the answer is diaphragm
What happens if calorie intake exceeds TDEE for a significant period of time?
Answer:
The individual gains weight if if calorie intake exceeds TDEE for a significant period of time.
Explanation:
TDEE ( Total daily energy expenditure) is the number of calories burnt in the day. TDEE involves the energy from the basal metabolism and physical activity.
The value of TDEE exceeds the value of basal metabolic rate. If calories intake in an individual exceeds the TDEE, an individual body's gain weight for the significant period of time.
What is the signal for a vesicle storing peptide hormone to move to the plasma membrane and release contents of vesicle?
a. Activation of an integrin receptor
b. Activation of a g-protein
c. Activation of an enzyme linked receptor
d. Increase in [Ca++]i
e. Increase in [Na+]i
Answer:
(d). Increase in [Ca++]i
Explanation:
Peptide hormones are hormones, synthesized by polymerization of amino acids that generally bind with receptors present on membrane of target cells. These hormones are produced in ER (endoplasmic reticulum) and are packed into secretory vesicles in Golgi for export.
These peptide hormone storing vesicles move to membrane of target cell and release their content due to increase in intracellular calcium (Ca++) ions concentration.
Thus, the correct answer is option (d).
48) Capillaries lack smooth muscle and elastic or fibrous tissue reinforcement. Instead, theirwalls consist of ________, supported on a cellular matrix called ________
There’s no fill in words ?
Capillaries are formed from a single layer of endothelial cells, supported by a basement membrane. This structure allows them to be flexible, yet strong, and permeable to materials passing through them.
Explanation:Capillaries, unlike other types of blood vessels, lack smooth muscle and elastic or fibrous tissue reinforcement. Instead, their walls are composed of endothelial cells, which are supported on a cellular matrix known as the basement membrane or basal lamina.
In a large capillary, several endothelial cells may line the lumen, while in a small capillary there may be only a single cell layer that wraps around to contact itself. The basement membrane, which binds the endothelium to the connective tissue, provides strength while maintaining flexibility. It is permeable, allowing materials to pass through it.
Learn more about Capillary Structure here:https://brainly.com/question/29358152
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The structure of a Neuron: ___________ contains nucleus and organelles; _________ receives nerve impulses and conducts it towards cell body whereas _________ conducts nerve impulses away from the body.
Answer:
The structure of a Neuron: Soma/cell body contains nucleus and organelles; dendrites receives nerve impulses and conducts it towards cell body whereas axon conducts nerve impulses away from the body.
Explanation:
A neuron is the structural and functional unit of the nervous system. A neuron has three main structural components namely, soma, one axon, and many dendrites.
Soma is the metabolic center of the neuron and does not participate in conduction of nerve impulse. Many small extensions arise from the soma and are called dendrites. The function of dendrites is to carry the nerve impulse from axon terminals of the presynaptic neuron towards soma.
One large extension of soma is axon that carries the nerve impulse from soma to the axon terminals.