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 synthesis of ________ depends on the penetration of ultraviolet light through the epidermis.
A. vitamin D B. keratin C. carotene D. collagen E. cholesterol
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