EXERCISE SCIENCE CH. 3 |VERIFIED QUESTIONS AND
ANSWERS | 100% ACCURATE A+ GRADED, GUARANTEED
SUCCESS!
the systems work in unison to respond to Answer: physical activity, stress, regular exercise,
chnages in nutrition, environment changes, disease conditions
what are the two primary control systems in the body Answer: nervous system and endocrine
system
functions of the nervous system Answer: controls voluntary and involuntary actions and
functions of the body and works with other systems to regulate and respond to challenges such
as exercise and physical activity
What does the central nervous system consist of? Answer: brain and spinal cord
what does the peripheral nervous system contain Answer: nerves
What are afferent neurons? Answer: sensory neurons
what do afferent neurons do Answer: send informaton to the nervous system
what are efferent neurons Answer: motor neurons
what do efferant neurons do Answer: sends information away from nervous system
what are somatic movements Answer: voluntary movements
what are autonomic movements Answer: involuntary movements
what signals gp to the brain Answer: conscious thought
what signals stay in the spinal cord Answer: reflexes
What is the sympathetic nervous system? Answer: fight or flight
What is the parasympathetic nervous system? Answer: rest and digest
why do we have changes to the autonomic nervous system Answer: when an aerobic athlete
becomes better trained
what do changes in the autonomic nervous system lead to Answer: imporved performance
what is a greater stroke volume mean Answer: more blood to heart per bpm
1
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, why does a greater stroke volume occur Answer: following endurance training alterations in the
NS allow for it
what is a higher cardiac output mean Answer: more blood to muscles
what happens when stress is put on the body Answer: it will adapt
how long is anaerobic activity Answer: 10 seconds or less
how long is aerobic activity Answer: long distance
what are the functions of the muscular system Answer: contraction of skeletal muscles causing
bones to move. organ contraction and relaxation.
what is the primary component of the muscular system Answer: muscle fibers
what kind of control are skeletal muscles under Answer: voluntary
what kind of control os cardiac muscle under Answer: autonomic
what does cardiac muscle do Answer: generates the force by which the heart pumps blood to
the tissues
what kind of control is smooth muscle under Answer: autonomic
what does smooth muscle do Answer: contraction regulates the movement of blood vessels,
food through digestive tract or air through respirtory system.
what is delayed onset muscle soreness (DOMS) Answer: results from tissue injury caused by
excessive mechanical force exerted upon the muscle fibers and connective tissue. the cell
membrane and proteins damaged cause an inflammetory response on the muscle that leads to
swelling. afferent nerves become stimulated in response to the swelling and the person feels
soreness in the muscle. usually felt 24-72 hours later.
what is eccentric muscle action Answer: Force produced while the muscle is lengthening
what is muscle fiber hypertrophy Answer: create more actin and myosin fibers in the cell. larger
size of muscle.
what athletes have more myofibrils Answer: those who have engaged in high-intensity and
high-volume resistance traiing for many years.
what is muscle fiber hyperplasia Answer: creation of new muscle cells
what is myosin Answer: proetin that acts as a molecular motor, converts chemical energy to
mechnical energy
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
ANSWERS | 100% ACCURATE A+ GRADED, GUARANTEED
SUCCESS!
the systems work in unison to respond to Answer: physical activity, stress, regular exercise,
chnages in nutrition, environment changes, disease conditions
what are the two primary control systems in the body Answer: nervous system and endocrine
system
functions of the nervous system Answer: controls voluntary and involuntary actions and
functions of the body and works with other systems to regulate and respond to challenges such
as exercise and physical activity
What does the central nervous system consist of? Answer: brain and spinal cord
what does the peripheral nervous system contain Answer: nerves
What are afferent neurons? Answer: sensory neurons
what do afferent neurons do Answer: send informaton to the nervous system
what are efferent neurons Answer: motor neurons
what do efferant neurons do Answer: sends information away from nervous system
what are somatic movements Answer: voluntary movements
what are autonomic movements Answer: involuntary movements
what signals gp to the brain Answer: conscious thought
what signals stay in the spinal cord Answer: reflexes
What is the sympathetic nervous system? Answer: fight or flight
What is the parasympathetic nervous system? Answer: rest and digest
why do we have changes to the autonomic nervous system Answer: when an aerobic athlete
becomes better trained
what do changes in the autonomic nervous system lead to Answer: imporved performance
what is a greater stroke volume mean Answer: more blood to heart per bpm
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
, why does a greater stroke volume occur Answer: following endurance training alterations in the
NS allow for it
what is a higher cardiac output mean Answer: more blood to muscles
what happens when stress is put on the body Answer: it will adapt
how long is anaerobic activity Answer: 10 seconds or less
how long is aerobic activity Answer: long distance
what are the functions of the muscular system Answer: contraction of skeletal muscles causing
bones to move. organ contraction and relaxation.
what is the primary component of the muscular system Answer: muscle fibers
what kind of control are skeletal muscles under Answer: voluntary
what kind of control os cardiac muscle under Answer: autonomic
what does cardiac muscle do Answer: generates the force by which the heart pumps blood to
the tissues
what kind of control is smooth muscle under Answer: autonomic
what does smooth muscle do Answer: contraction regulates the movement of blood vessels,
food through digestive tract or air through respirtory system.
what is delayed onset muscle soreness (DOMS) Answer: results from tissue injury caused by
excessive mechanical force exerted upon the muscle fibers and connective tissue. the cell
membrane and proteins damaged cause an inflammetory response on the muscle that leads to
swelling. afferent nerves become stimulated in response to the swelling and the person feels
soreness in the muscle. usually felt 24-72 hours later.
what is eccentric muscle action Answer: Force produced while the muscle is lengthening
what is muscle fiber hypertrophy Answer: create more actin and myosin fibers in the cell. larger
size of muscle.
what athletes have more myofibrils Answer: those who have engaged in high-intensity and
high-volume resistance traiing for many years.
what is muscle fiber hyperplasia Answer: creation of new muscle cells
what is myosin Answer: proetin that acts as a molecular motor, converts chemical energy to
mechnical energy
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
