A structure that helps prevent food from entering the pharynx prematurely is the
A) uvula.
B) pharyngeal arch.
C) palatoglossal arch.
D) palatopharyngeal arch.
E) epiglottis.
A
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The anterior pituitary:
a. is called the neurohypophysis b. is called the adenohypophysis c. secretes ADH d. both A and C above
Inferior to the acetabulum is a large hole: the __________ foramen.
Fill in the blank(s) with the appropriate word(s).
The difference in pressure from one end of a vessel to the other is called ________, which greatly determines the rate of flow.
A) osmotic pressure B) pulse pressure C) pressure gradient D) pressure point E) pulse point
Answer the following statements true (T) or false (F)
1. Muscle spasms of the back often are due to the erector spinae contraction. 2. Muscles connecting to the hyoid bone are important for swallowing and speech. 3. The muscles of facial expression insert into skin or other muscles, not bones. 4. Once a motor neuron has fired, all the muscle fibers in a muscle contract. 5. The thin filaments (actin) contain a polypeptide subunit G actin that bears active sites for myosin attachment.