,BIO 201 Exam 3 – Anatomy & Physiology I
(2026) Q&A | StraighterLine
1. What is the study of the muscular system called?
A) Myology
B) Osteology
C) Neurology
D) Cardiology
Correct Answer: Myology
Rationale: Myology is the branch of anatomy that focuses on the structure and
function of muscles. Osteology studies bones, neurology studies the nervous
system, and cardiology studies the heart.
2. Skeletal muscles produce approximately what percentage of body heat?
A) 50%
B) 85%
C) 25%
D) 10%
Correct Answer: 85%
Rationale: Skeletal muscle contractions generate the majority of body heat
through metabolic processes, accounting for about 85% of total heat
production.
,3. Which of the following is NOT a function of skeletal muscle?
A) Movement
B) Stability
C) Heat production
D) Hormone secretion
Correct Answer: Hormone secretion
Rationale: Skeletal muscles produce movement, maintain posture, stabilize
joints, and generate heat. Hormone secretion is a function of endocrine glands,
not skeletal muscle.
4. The connective tissue layer that surrounds each individual muscle fiber is the:
A) Epimysium
B) Perimysium
C) Fascia
D) Endomysium
Correct Answer: Endomysium
Rationale: The endomysium is a delicate layer of areolar connective tissue that
encases each muscle fiber, providing a supportive environment for capillaries
and nerve endings.
5. A bundle of muscle fibers wrapped together by perimysium is called a:
, A) Fascicle
B) Sarcomere
C) Myofibril
D) Tendon
Correct Answer: Fascicle
Rationale: Perimysium groups muscle fibers into bundles called fascicles. The
epimysium surrounds the entire muscle, and fascicles give muscles their grain-
like appearance.
6. The fibrous sheath that surrounds the entire muscle is the:
A) Endomysium
B) Epimysium
C) Perimysium
D) Sarcolemma
Correct Answer: Epimysium
Rationale: Epimysium is the dense irregular connective tissue layer that wraps
the whole muscle, blending into tendons or aponeuroses that attach to bone.
7. A muscle attachment where the muscle ends short of the bone and a tendon
bridges the gap is a(n):
A) Direct attachment
B) Indirect attachment
(2026) Q&A | StraighterLine
1. What is the study of the muscular system called?
A) Myology
B) Osteology
C) Neurology
D) Cardiology
Correct Answer: Myology
Rationale: Myology is the branch of anatomy that focuses on the structure and
function of muscles. Osteology studies bones, neurology studies the nervous
system, and cardiology studies the heart.
2. Skeletal muscles produce approximately what percentage of body heat?
A) 50%
B) 85%
C) 25%
D) 10%
Correct Answer: 85%
Rationale: Skeletal muscle contractions generate the majority of body heat
through metabolic processes, accounting for about 85% of total heat
production.
,3. Which of the following is NOT a function of skeletal muscle?
A) Movement
B) Stability
C) Heat production
D) Hormone secretion
Correct Answer: Hormone secretion
Rationale: Skeletal muscles produce movement, maintain posture, stabilize
joints, and generate heat. Hormone secretion is a function of endocrine glands,
not skeletal muscle.
4. The connective tissue layer that surrounds each individual muscle fiber is the:
A) Epimysium
B) Perimysium
C) Fascia
D) Endomysium
Correct Answer: Endomysium
Rationale: The endomysium is a delicate layer of areolar connective tissue that
encases each muscle fiber, providing a supportive environment for capillaries
and nerve endings.
5. A bundle of muscle fibers wrapped together by perimysium is called a:
, A) Fascicle
B) Sarcomere
C) Myofibril
D) Tendon
Correct Answer: Fascicle
Rationale: Perimysium groups muscle fibers into bundles called fascicles. The
epimysium surrounds the entire muscle, and fascicles give muscles their grain-
like appearance.
6. The fibrous sheath that surrounds the entire muscle is the:
A) Endomysium
B) Epimysium
C) Perimysium
D) Sarcolemma
Correct Answer: Epimysium
Rationale: Epimysium is the dense irregular connective tissue layer that wraps
the whole muscle, blending into tendons or aponeuroses that attach to bone.
7. A muscle attachment where the muscle ends short of the bone and a tendon
bridges the gap is a(n):
A) Direct attachment
B) Indirect attachment
