The dermis has two major layers. Which layer constitutes 80% of the dermis and is responsible for the tension lines in the skin?
A) the papillary layer
B) the subcutaneous layer
C) the reticular layer
D) the hypodermal layer
C
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In a failing heart, stroke volume does not increase as steeply when end-diastolic volume increases.
Answer the following statement true (T) or false (F)
Which of the following is a progressive, degenerative disorder that affects upper and lower motor neurons causing skeletal muscle atrophy?
A) cerebral palsy B) stroke C) paralysis D) amyotrophic lateral sclerosis E) multiple sclerosis
The epimysium covering on the outside of the muscle can blend into cordlike ________ or sheetlike ________.
a. nephron and cilia
b. trachea and tendon
c. trachea and renal cortex
d. tendon and aponueroses
e. afferent and arteriole
The synthesis of ________ depends on the penetration of ultraviolet light through the epidermis.
A. vitamin D B. keratin C. carotene D. collagen E. cholesterol