Choose the incorrect statement about the production of sound called the voice:
Speaking sounds are produced when the epiglottis vibrates.
Thicker vocal cords produce deeper voice sounds.
Laryngitis results when the vocal cords become swollen and thick and cannot vibrate easily.
There are only two true vocal cords.
Speaking sounds are produced when the epiglottis vibrates.
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The time between ovulation and menses is known as the ________ phase.
A. follicular B. primordial C. proliferative D. luteal
Answer the following statements true (T) or false (F)
1. The pinkish hue of individuals with fair skin is the result of the crimson color of oxygenated hemoglobin (contained in red blood cells) circulating in the dermal capillaries and reflecting through the epidermis. 2. Hair growth and density are influenced by hormones, nutrition, and, in some cases, lifestyle. 3. When a patient is said to have "third-degree burns," this indicates that the patient has burns that cover approximately one-third of the body. 4. Sweat glands continuously produce small amounts of sweat, even in cooler temperatures. 5. The shock-absorbing pads between the vertebrae are formed of fibrocartilage.
During thyroid hormone secretion,
a. the follicular cells phagocytize a piece of colloid b. T4 and T3 are removed from thyroglobulin by lysosomal enzymes in the follicular cell; then they diffuse out of the cell and into the blood c. T4 and T3 are secreted by exocytosis of the colloid that has been internalized by the follicular cells d. both a and b occur e. both b and c occur
For the repolarization phase of an SA nodal cell action potential,
A. calcium channels open and sodium channels close. B. sodium and potassium channels open. C. calcium and potassium channels close. D. sodium and chloride channels open. E. calcium channels close and potassium channels open.