BIO 325 EXAM 5 QUESTIONS WITH CORRECT
ANSWERS GRADED A+ 2026 UPDATE
What is muscle? -Correct Answer ✔-Comprises largest group of tissues in body
What can muscle cells do? -Correct Answer ✔-Contract and shorten
What are the three types of muscle cells? -Correct Answer ✔-- Skeletal
- Cardiac
- Smooth
what muscles are somatic? -Correct Answer ✔-skeletal muscle
what muscles are autonomic? -Correct Answer ✔-cardiac and smooth
Which muscles are striated? -Correct Answer ✔-- Skeletal
- Cardiac
Which muscle is unstriated? -Correct Answer ✔-Smooth
what muscles are voluntary? -Correct Answer ✔-skeletal
what muscles are involuntary? -Correct Answer ✔-cardiac and smooth
What are the five functions of skeletal muscle? -Correct Answer ✔-- Body
movement
- Maintenance of posture
- Protection and support
- Regulating elimination of materials
- Heat production
What are the five characteristics of skeletal muscle? -Correct Answer ✔--
Excitability (only can excite, ACh)
, - Conductivity
- Contractility
- Extensibility
- Elasticity
What does skeletal muscle consist of? -Correct Answer ✔-Many fibers in parallel
held by connective tissue
What is a fascicle? -Correct Answer ✔-Bundle of muscle fibers
What are the three concentric layers of wrapping? -Correct Answer ✔-- Epimysium
- Perimysium
- Endomysium
What is epimysium? -Correct Answer ✔-Wrapping whole muscle
What is perimysium? -Correct Answer ✔-Wrapping fascicle
What is endomysium? -Correct Answer ✔-- Wrapping individual fiber
- Electrical insulation, capillary support, binding of neighboring cells
blood vessels and nerves within the skeletal muscles -Correct Answer ✔-
vascularized and are innervated by somatic neurons
What are t-tubules full of? -Correct Answer ✔-Voltage-gated Na channels to
conduct AP
What do t-tubules do? -Correct Answer ✔-Allow access to individual myofibrils
What does the sarcoplasmic reticulum do? -Correct Answer ✔-Stores/releases
calcium, which leads to contraction
What does the SERCA pump do? -Correct Answer ✔-Uses ATP to move calcium
ANSWERS GRADED A+ 2026 UPDATE
What is muscle? -Correct Answer ✔-Comprises largest group of tissues in body
What can muscle cells do? -Correct Answer ✔-Contract and shorten
What are the three types of muscle cells? -Correct Answer ✔-- Skeletal
- Cardiac
- Smooth
what muscles are somatic? -Correct Answer ✔-skeletal muscle
what muscles are autonomic? -Correct Answer ✔-cardiac and smooth
Which muscles are striated? -Correct Answer ✔-- Skeletal
- Cardiac
Which muscle is unstriated? -Correct Answer ✔-Smooth
what muscles are voluntary? -Correct Answer ✔-skeletal
what muscles are involuntary? -Correct Answer ✔-cardiac and smooth
What are the five functions of skeletal muscle? -Correct Answer ✔-- Body
movement
- Maintenance of posture
- Protection and support
- Regulating elimination of materials
- Heat production
What are the five characteristics of skeletal muscle? -Correct Answer ✔--
Excitability (only can excite, ACh)
, - Conductivity
- Contractility
- Extensibility
- Elasticity
What does skeletal muscle consist of? -Correct Answer ✔-Many fibers in parallel
held by connective tissue
What is a fascicle? -Correct Answer ✔-Bundle of muscle fibers
What are the three concentric layers of wrapping? -Correct Answer ✔-- Epimysium
- Perimysium
- Endomysium
What is epimysium? -Correct Answer ✔-Wrapping whole muscle
What is perimysium? -Correct Answer ✔-Wrapping fascicle
What is endomysium? -Correct Answer ✔-- Wrapping individual fiber
- Electrical insulation, capillary support, binding of neighboring cells
blood vessels and nerves within the skeletal muscles -Correct Answer ✔-
vascularized and are innervated by somatic neurons
What are t-tubules full of? -Correct Answer ✔-Voltage-gated Na channels to
conduct AP
What do t-tubules do? -Correct Answer ✔-Allow access to individual myofibrils
What does the sarcoplasmic reticulum do? -Correct Answer ✔-Stores/releases
calcium, which leads to contraction
What does the SERCA pump do? -Correct Answer ✔-Uses ATP to move calcium
