The ischemic phase of the uterine cycle is brought on by vascular spasms, which in turn are a response to what?
A. Ovulation
B. Menstruation
C. Rising LH level
D. Falling progesterone level
E. Rising progesterone level
D. Falling progesterone level
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Mental and physical sluggishness and low body temperature may be signs of
A) hyperthyroidism. B) hypothyroidism. C) hyperparathyroidism. D) hypoparathyroidism. E) diabetes insipidus.
Answer the following statements true (T) or false (F)
1. Tonic contractions provide rapid movement for skeletal muscles. 2. Good posture can be defined as holding the body parts in the position that favors best function. 3. The production of heat is a primary function of the muscular system. 4. Hypothermia refers to a dangerous elevation in body temperature. 5. The breakdown of ATP is the energy source that helps supply heat to the body.
Your studies of the neuromuscular junction reveal that the excitatory neurotransmitter opens a channel permeable to all three cations. Calculate the equilibrium potential for each cation. In which direction will each cation move when the channel is open? Does movement of ions promote muscle depolarization? Explain your answer.
What will be an ideal response?
The nasal cavity is divided into right and left sides by
A. the conchae. B. the paranasal sinuses. C. external nares. D. the nasal septum. E. the hard palate.