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RIO SALADO BIO 201 ANATOMY & PHYSIOLOGY FINAL LATEST EXAM 2024/2025 | ALL QUESTIONS AND CORRECT ANSWERS | GRADED A+ | VERIFIED ANSWERS$13.99
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RIO SALADO BIO 201 ANATOMY & PHYSIOLOGY FINAL
LATEST EXAM 2024/2025 | ALL QUESTIONS AND CORRECT
ANSWERS | GRADED A+ | VERIFIED ANSWERS
During muscle contraction, ATP is provided by
(A) a coupled reaction of creatine phosphate with ADP
(B) aerobic respiration of glucose,
(C) anaerobic glycolysis? (multiple answers may apply)
1) Provides ATP fastest?
2) Does/do not require that oxygen be available?
3) Highest yield of ATP per glucose molecule?
4) Results in the formation of lactic acid?
5) Has carbon dioxide and water products?
6) Most important in endurance sports?
- Answer: 1) A) a coupled reaction of creatine phosphate with ADP
2) A) a coupled reaction of creatine phosphate with ADP
and C) anaerobic glycolysis
3) B) aerobic respiration of glucose
4) C) anaerobic glycolysis
5) B) aerobic respiration of glucose
6) B) aerobic respiration of glucose
What is the neurotransmitter released by somatic motor neurons called?
A) acetylcholine
B) acetylcholinesterase
C) norepinepherine - Answer: A) acetylcholine
What are the ions that enter the muscle cell during action potential generation
called?
A) calcium ions
B) chloride ions
C) sodium ions
D) potassium ions - Answer: C) sodium ions
What is the special function of Myoglobin in muscle tissue?
,Page 2 of 90
A) break down glycogen
B) is a contractile protein
C) holds a reserve supply of oxygen in the muscle - Answer: C) holds a reserve
supply of oxygen in the muscle
Aerobic exercise results in all of the following except?
A) increased cardiovascular system efficiency
B) more mitochondria in the muscle cells
C) increased size and strength of existing muscle cells
D) increased neuromuscular system coordination - Answer: C) increased size and
strength of existing muscle cells
What is the smooth muscle type found in the walls of digestive and urinary system
organs that exhibit gap junctions and pacemaker cells?
A) multiunit smooth muscle
B) single-unit smooth muscle - Answer: B) single-unit smooth muscle
Which area of the sarcomere consists of just myosin filaments?
A) I bands
B) H zone
C) A bands
D) M line
E) Z disc - Answer: B) H zone
Which area of the sarcomere consists of overlapping actin and myosin filaments?
A) I bands
B) H zone
C) A bands
D) M line
E) Z disc - Answer: C) A bands
Cross bridges are part of which myofilaments?
A) myosin (thick filoments)
B) actin (thin filaments) - Answer: A) myosin (thick filoments)
,Page 3 of 90
Upon contraction the H band and the ________ band gets shorter?
A) A bands
B) I bands - Answer: B) I bands
When a muscle is not contracting, the binding sites on actin are blocked by what
molecular complex?
A) dysotrophin
B) titan
C) troponin/tropomyosin complex
D) myomesin - Answer: C) troponin/tropomyosin complex
The sarcoplasmic reticulum stores _________ ions?
A) calcium ions
B) chloride ions
C) sodium ions
D) potassium ions - Answer: A) calcium ions
A muscle that assists an agonist by causing a like movement or by stabilizing a
joint over which an agonist acts is
A) antagonist
B) prime mover
C) synergist
D) agonist - Answer: C) synergist
A muscle in which the fibers are arranged at an angle to a central longitudinal
tendon has a ________ arrangement.
A) circular
B) longitudinal
C) pennate
D) parallel - Answer: C) pennate
Match the muscle names to the facial muscles described.
a. frontal belly of epicranius b. Orbicularis oculi c. Occipital belly of epicranius d.
Zygomaticus e. Orbicularis oris
, Page 4 of 90
1) squints the eye
2) raises the eyebrows
3) smiling muscle
4) puckers the lips
5) pulls the scalp posteriorly - Answer: b. Orbicularis oculi 1) squints the eye
a. Frontal belly of epicranius 2) raises the eyebrows
d. Zygomaticus 3) smiling muscle
e. Orbicularis oris 4) puckers the lips
c. Occipital belly of epicranius 5) pulls the scalp posteriorly
The prime mover of inspiration is the
A) diaphragm
B) internal intercostals
C) external intercostals
D) abdominal wall muscles - Answer: A) diaphragm
The arm muscle that both flexes the elbow and supinates the forearm is the
A) brachialis
B) brachioradialis
C) biceps brachii
D) triceps brachii - Answer: C) biceps brachii
What is the connective tissue covering that encloses the sarcolemma of an
individual muscle fiber?
A) epimysium
B) perimysium
C) endomysium
D) periosteum - Answer: C) endomysium
What is a fascicle?
A) muscle
B) bundle of muscle fibers enclosed by a connective tissue sheath
C) bundle of myofibrils
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