Collectively, the hollow cavities in the maxillae, ethmoid, sphenoid, and frontal bones are called the ________ sinuses.
Fill in the blank(s) with the appropriate word(s).
paranasal
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Unique voltage-gated Na+ channels in pacemaker cells that open when the membrane becomes more negative (hyperpolarizes) and bring about the initial depolarization in the pacemaker potential are called ________ channels
Fill in the blank(s) with correct word
To raise your hand and touch the shoulder on that same side involves __________ of your elbow.
A. abduction B. adduction C. flexion D. extension E. elevation
Answer the following statements true (T) or false (F)
1. The prostate atrophies as a man ages, and it usually causes no health problems. 2. The hormone oxytocin combines with enzymes in semen to enhance sperm motility. 3. When a couple is having difficulty conceiving a child, it is necessary to investigate the sperm of the male. 4. The amount of testosterone and sperm produced by the testes is dependent on the influence of FSH alone. 5. Ovarian follicles contain mature eggs.
An animal that is a monorchid is ______________ cryptorchid
Fill in the blank(s) with correct word