STRAIGHTERLINE ANATOMY AND PHYSIOLOGY 1
A&P 1 LATEST EXAMS TEST PAPER QUESTIONS
AND ANSWERS SURE A+
✔✔The absolute refractory period assures - ✔✔completion of repolarization before
✔✔Atropine causes the pupil of the eye to dilate by blocking the effect of muscarinic
receptors. This means atropine is a(n) - ✔✔parasympathetic blocking agent
✔✔Which of the following statements applies to the autonomic nervous system? -
✔✔The receptor molecules of the ANS may be muscarinic, nicotinic, or adrenergic.
✔✔Match the characteristic with the correct nervous system.
All axons are myelinated - ✔✔somatic motor nervous system
✔✔Autonomic reflexes might be integrated in the - ✔✔medula oblongata, spinal cord
and hypothalamus
✔✔The short connection between a spinal nerve and a sympathetic chain ganglion
through which preganglionic neurons pass is called the - ✔✔white ramus communicans
,✔✔When norepinephrine binds to adrenergic receptors, - ✔✔G proteins mediate the
cell's response.
✔✔Consider the two statements and use the following key to choose your answer.
(1) the number of sympathetic impulses produced when a person is angry
(2) the number of sympathetic impulses produced when a person is relaxed - ✔✔First
item is greater than the second item
✔✔Which of the following is NOT a symapthetic effect on the body? - ✔✔constriction of
the pupil
✔✔Which of the following is NOT a parasympathetic effect? - ✔✔dilation of the
bronchioles in the lungs
✔✔The two classes of adrenergic receptors are - ✔✔alpha and beta
✔✔Match the phrase to either the sympathetic or parasympathetic division of the
autonomic nervous system.
Increases activity of GI tract - ✔✔parasympathetic
✔✔Where is the enteric nervous system located? - ✔✔digestive tract
✔✔Emily is in labor with her first child. The amplitude-modulated system would show
her oxytocin levels - ✔✔to have a strong signal
✔✔Consider the following events in the nuclear receptor model:
(1) Hormone receptor complex binds to DNA.
(2) Messenger RNA directs synthesis of specific proteins.
(3) Hormone binds to receptors in the nucleus (sometimes in the cytoplasm)
(4) Messenger RNA synthesis is activated.
(5) Synthesized proteins produce the response of the cell.
Which of these events occurs in the nucleus? - ✔✔1, 3, 4
✔✔Blood chemistry changes are examples of ______ stimuli, whereas sympathetic
nervous system impulses are examples of _______ stimuli for hormone release -
✔✔humoral; neural
✔✔Which of the following occurs when a hormone binds to a nuclear receptor? -
✔✔activation of mRNA synthesis
, ✔✔What type of hormone-receptor action allows insulin to move glucose into cells? -
✔✔phosphorylation of intracellular proteins
✔✔The role of cAMP when it acts as an intracellular mediator in cells is to - ✔✔bind to
and activate protein kinase
✔✔All of the following characteristics of hormones except - ✔✔Hormones interact with
any cells in contact with bloodstream
✔✔Which pattern of hormone secretion, represented by epinephrine, can have dramatic
changes in its concentration and circulating levels? - ✔✔acute hormone secretion
✔✔Which pattern of hormone secretion, exemplified by thyroid hormones, remains
relatively constant over long periods of time? - ✔✔chronic hormone secretion
✔✔Thyroid hormones (TH) normally travel in the blood both free and bound to TH-
binding proteins. What would you expect to see in the blood work of a patient who had a
deficiency of TH-binding protein? - ✔✔Normal free TH levels, and low bound TH levels
✔✔Which of the following is NOT a regulatory function of the endocrine system? -
✔✔Regulates equilibrium and balance from the inner ear
✔✔Compounds released from cells that influence the same cell are called
_____________. - ✔✔autocrine chemical messengers
✔✔Which of the following is NOT a regulatory function of the endocrine system? -
✔✔Regulates skeletal muscle contraction strength
✔✔Synthesis of progesterone in the ovary and testosterone in the testis is stimulated by
- ✔✔LH (luteinizing hormone)
✔✔If insulin secretion is too low or its receptors are insensitive, all of the following
effects are seen, except - ✔✔increased uptake of glucose to cells
✔✔Which of the following hormones promotes the breakdown of fatty acids? -
✔✔lipotropins
✔✔ADH (antidiuretic hormone) is secreted in response to - ✔✔increased osmotic
pressure of the body fluids
✔✔What role does oxytocin play in lactation? - ✔✔ejection of milk
A&P 1 LATEST EXAMS TEST PAPER QUESTIONS
AND ANSWERS SURE A+
✔✔The absolute refractory period assures - ✔✔completion of repolarization before
✔✔Atropine causes the pupil of the eye to dilate by blocking the effect of muscarinic
receptors. This means atropine is a(n) - ✔✔parasympathetic blocking agent
✔✔Which of the following statements applies to the autonomic nervous system? -
✔✔The receptor molecules of the ANS may be muscarinic, nicotinic, or adrenergic.
✔✔Match the characteristic with the correct nervous system.
All axons are myelinated - ✔✔somatic motor nervous system
✔✔Autonomic reflexes might be integrated in the - ✔✔medula oblongata, spinal cord
and hypothalamus
✔✔The short connection between a spinal nerve and a sympathetic chain ganglion
through which preganglionic neurons pass is called the - ✔✔white ramus communicans
,✔✔When norepinephrine binds to adrenergic receptors, - ✔✔G proteins mediate the
cell's response.
✔✔Consider the two statements and use the following key to choose your answer.
(1) the number of sympathetic impulses produced when a person is angry
(2) the number of sympathetic impulses produced when a person is relaxed - ✔✔First
item is greater than the second item
✔✔Which of the following is NOT a symapthetic effect on the body? - ✔✔constriction of
the pupil
✔✔Which of the following is NOT a parasympathetic effect? - ✔✔dilation of the
bronchioles in the lungs
✔✔The two classes of adrenergic receptors are - ✔✔alpha and beta
✔✔Match the phrase to either the sympathetic or parasympathetic division of the
autonomic nervous system.
Increases activity of GI tract - ✔✔parasympathetic
✔✔Where is the enteric nervous system located? - ✔✔digestive tract
✔✔Emily is in labor with her first child. The amplitude-modulated system would show
her oxytocin levels - ✔✔to have a strong signal
✔✔Consider the following events in the nuclear receptor model:
(1) Hormone receptor complex binds to DNA.
(2) Messenger RNA directs synthesis of specific proteins.
(3) Hormone binds to receptors in the nucleus (sometimes in the cytoplasm)
(4) Messenger RNA synthesis is activated.
(5) Synthesized proteins produce the response of the cell.
Which of these events occurs in the nucleus? - ✔✔1, 3, 4
✔✔Blood chemistry changes are examples of ______ stimuli, whereas sympathetic
nervous system impulses are examples of _______ stimuli for hormone release -
✔✔humoral; neural
✔✔Which of the following occurs when a hormone binds to a nuclear receptor? -
✔✔activation of mRNA synthesis
, ✔✔What type of hormone-receptor action allows insulin to move glucose into cells? -
✔✔phosphorylation of intracellular proteins
✔✔The role of cAMP when it acts as an intracellular mediator in cells is to - ✔✔bind to
and activate protein kinase
✔✔All of the following characteristics of hormones except - ✔✔Hormones interact with
any cells in contact with bloodstream
✔✔Which pattern of hormone secretion, represented by epinephrine, can have dramatic
changes in its concentration and circulating levels? - ✔✔acute hormone secretion
✔✔Which pattern of hormone secretion, exemplified by thyroid hormones, remains
relatively constant over long periods of time? - ✔✔chronic hormone secretion
✔✔Thyroid hormones (TH) normally travel in the blood both free and bound to TH-
binding proteins. What would you expect to see in the blood work of a patient who had a
deficiency of TH-binding protein? - ✔✔Normal free TH levels, and low bound TH levels
✔✔Which of the following is NOT a regulatory function of the endocrine system? -
✔✔Regulates equilibrium and balance from the inner ear
✔✔Compounds released from cells that influence the same cell are called
_____________. - ✔✔autocrine chemical messengers
✔✔Which of the following is NOT a regulatory function of the endocrine system? -
✔✔Regulates skeletal muscle contraction strength
✔✔Synthesis of progesterone in the ovary and testosterone in the testis is stimulated by
- ✔✔LH (luteinizing hormone)
✔✔If insulin secretion is too low or its receptors are insensitive, all of the following
effects are seen, except - ✔✔increased uptake of glucose to cells
✔✔Which of the following hormones promotes the breakdown of fatty acids? -
✔✔lipotropins
✔✔ADH (antidiuretic hormone) is secreted in response to - ✔✔increased osmotic
pressure of the body fluids
✔✔What role does oxytocin play in lactation? - ✔✔ejection of milk
