Answer the following statements true (T) or false (F)
1. The main function of the skin is to act as a sense organ for the body.
2. The main function of the skin is to assist in control of body temperature.
3. The main function of the skin is protection of the underlying organs.
4. Bones are the main organs of the skeletal system.
5. There are over 300 bones in the human body.
1. FALSE
2. FALSE
3. TRUE
4. TRUE
5. FALSE
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Tight junctions
a. prevent passage of materials into epithelial cells b. force materials to pass between cells c. are commonly found in digestive tract linings d. comprise part of the glycocalyx e. consist of cadherin proteins
When is a plasma membrane more permeable to K+ than to Na+?
a. During the resting potential b. During the rising phase of an action potential c. During the rising phase of a graded potential d. Both a and b e. Both b and c
Stimulation of ?2 receptors in the lung causes
A. bronchoconstriction. B. bronchodilation.
All of the anterior muscles of the forearm, except one, have their proximal attachment on the medial epicondyle of the humerus via a common flexor tendon. Select the exception.
A. Flexor carpi radialis B. Flexor digitorum superficialis C. Flexor pollicis longus D. Flexor carpi ulnaris E. Palmaris longus