Anatomy 001 - Introduction to Human Anatomy » Fall 2020 (2) » Lecture Quiz 4

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Question #1
Which of the following is the plasma membrane of a skeletal muscle fiber?
A.   Sarcoplasm
B.   Sarcoplasmic reticulum (SR)
C.   Myofibril
D.   Sarcolemma
Question #2
Which of the following muscle tissue types is non-striated?
A.   Cardiac muscle tissue
B.   Cornified stratified squamous epithelium.
C.   Smooth muscle tissue
D.   Skeletal muscle tissue
Question #3
Which of the following muscle connective tissues surrounds an entire muscle?
A.   Perimysium
B.   Endomysium
C.   Periosteum
D.   Epimysium
Question #4
Muscle cells can be stimulated by neurons to generate electrical signals this is called muscle tissue ______________________.
A.   extensibility
B.   excitability
C.   contractility
D.   elasticity
Question #5
A motor unit is composed of
A.   a muscle fiber and all the somatic motor neurons it innervates.
B.   a somatic motor neuron and all the muscle fibers it innervates.
C.   a collection of neurons sending their axons from the hypothalamus to the posterior pituitary gland.
D.   a collection of neurons sending their axons from the hypothalamus to the anterior pituitary gland.
Question #6
The _________________ is the immobile muscle attachment site.
A.   insertion
B.   sarcoplasmic reticulum
C.   origin
D.   sarcoplasm
Question #7
Which of the following is not a function of the muscular system?
A.   Generate heat
B.   Produce movement along with the skeletal system.
C.   Open and close body passageways
D.   Production of all blood cells.
Question #8
The sarcoplasm contains _________________________ proteins that bind to oxygen and allow the muscle fiber to carry extra oxygen.
A.   Actin
B.   Hemoglobin
C.   myoglobin
D.   Myosin
Question #9
Skeletal muscle has an alternating dark band, light band appearance, because of this skeletal muscle is called ____________________.
A.   striated
B.   non-striated
C.   excitable
D.   cornified
Question #10
The actin filament is built on a protein filament called __________.
A.   nebulin
B.   hyaluronan
C.   myosin
D.   lubricin

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