When growing bones widen through appositional growth, what kind of cells add bone matrix to the outside of the diaphysis?

A) erythrocytes
B) osteoblasts
C) osteoclasts
D) chondrocytes
E) osteocytes


B

Anatomy & Physiology

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What is the function of the cremaster muscle?

A. It becomes engorged with blood during an erection. B. It contracts during ejaculation to assist in the movement of sperm through the spermatic cord. C. In most mammals, it serves to move the tail but has no purpose in humans. D. It contributes to voluntary control of urination. E. It contracts to draw the testes close to the body for warmth.

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Describe the effect of exposure to UV rays on the skin

A. Improved skin tone B. Increased vitamin B production C. Increased melanin synthesis D. Decreased cancer risk

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Which hormones are classified as steroid hormones? select all that apply.

a) oxytocin b) testosterone c) epinephrine d) thyroid hormone e) cortisol

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The following are stages in the regeneration of skin following an injury. What is the correct order for these events? 1. inflammation 2. cellular migration 3. epidermis covers granulation tissue 4. epidermis covers scar tissue

A) 1, 2, 3, 4 B) 4, 3, 2, 1 C) 4, 3, 1, 2 D) 3, 4, 1, 2 E) 2, 4, 1, 3

Anatomy & Physiology