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Bio 446 L Exam 3- Muscle Tissue, Musculoskeletal System 1,2,3, and Endocrine, Respiratory System Questions and Answers CA$12.98   Add to cart
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Bio 446 L Exam 3- Muscle Tissue, Musculoskeletal System 1,2,3, and Endocrine, Respiratory System Questions and Answers
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Muscle contraction involves the movement of actin and myosin relative to each other. Which of the two attaches to the z-line of a sarcomere? actin filaments During the elevation of the shoulder by the trapezius muscle which of the following would shorten? i-band of the sarcomere Which type of mus...

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  • August 17, 2024
  • 8
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • bio 446 l exam 3 muscle tissue musculoskeletal s
  • muscle contraction involves the movement of actin
  • during the elevation of the shoulder by the trapez

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Bio 446 L Exam 3- Muscle Tissue,
Musculoskeletal System 1,2,3, and
Endocrine, Respiratory System
Questions and Answers
Muscle contraction involves the movement of actin and myosin relative to each other.
Which of the two attaches to the z-line of a sarcomere? ✅actin filaments

During the elevation of the shoulder by the trapezius muscle which of the following
would shorten? ✅i-band of the sarcomere

Which type of muscle can regulate through mitotic activity? ✅smooth

At the neuromuscular junction the folds that contain acetylcholine receptors are a part of
the: ✅sarcolemma

The muscle of the left ventricle has purkinje fibers of the conducting system located in
which layer? ✅endocardium, deep layer (subendocardium)

Which type of muscle has myofilaments arranged in many planes and anchored to
plasma membrane? ✅smooth

All the following statements about skeletal and cardiac muscle are true except one.
Which statement is not correct? ✅

The type of joint characterized by two bones being joined by dense fibrous connective
tissue, e.g. Interosseous ligaments, is termed a: ✅syndesmosis

Which of the following muscles originates on the axial skeleton and acts to move the
arm at the shoulder joint? ✅latissimus dorsi

A muscle that both extends and flexes the arm at the shoulder joint is innervated by the
_____ nerve ✅axillary

Which of the following muscles act both at the shoulder and elbow joins? ✅triceps
brachii

The motor nerve that innervates the muscles located in the anterior compartment of the
arm is the ✅musculocutaneous

, Tactile discrimination sensation from the foot travels through the spinal cord at the level
of the heart in which of the following fiber tracts? ✅dorsal column

A stroke on the left hemisphere affecting the precentral gyrus would result in ✅motor
impairment on the contralateral (right) side

The secondary neuron cell body for pain sensation from the hand is located in the
✅dorsal horn of the spinal cord

The cortical location for sensation of the tongue is located on the ✅lateral aspect of the
homunculus in the postcentral gyrus

A patient has had a spinal cord injury in the t4-t6 region of the cord. Which of the
following deficits of the lower limb are associated with an upper motor neuron injury at
the site? ✅spastic paralysis on the affected side

If baroreceptors in the aorta detect decreased arterial pressure, a sympathetic response
is initiated. Which of the following actions would you expect to occur?
✅vasoconstriction

Cell bodies of preganglionic sympathetic neurons are located in the:
✅intermediolateral horn of the spinal cord (t1-l2)

We talked about neglect syndrome in class. If a patient exhibited right side neglect, in
which structure would only nerve fibers from the affected visual field travel? ✅left optic
tract

The rods and cones of the retina are immediately adjacent to the ✅pigmented layer

Testlet: the muscle tissue associated with tenderness is characterized by nuclei that are
✅located on the periphery

Testlet: the first connective tissue covering associated with the muscle pierced by the
stud is ✅epimysium

What type of contraction is seen here in his biceps muscles as he slowly lowers the
weight to the ground? ✅eccentric contraction

Testlet: the pain sensation will travel to the trigeminal ganglion in a neuron typically
classified as ✅unipolar

The region of the adrenal gland which produces aldosterone is the ✅cortex, zona
glomerulosa

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