Answer the following statements true (T) or false (F)
1. Luteinizing hormone is also called the ovulating hormone.
2. Males also produce luteinizing hormone.
3. ADH causes water to be excreted in the urine.
4. A person who was working hard on a hot day and perspiring freely would probably have a fairly high concentration of ADH in his blood.
5. Oxytocin stimulates contraction of the pregnant uterus.
1. TRUE
2. TRUE
3. FALSE
4. TRUE
5. TRUE
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Down-regulation may allow a target cell to
A) decrease the receptors' binding affinity and increase its number of receptors. B) only increase its binding affinity for a ligand. C) only decrease its number of receptors for a ligand. D) only increase its number of receptors for a ligand.
Define rickets
What will be an ideal response?
During implantation, the
A) syncytial trophoblast erodes a path through the endometrium. B) inner cell mass begins to form the placenta. C) maternal blood vessels in the endometrium are walled off from the blastocyst. D) entire trophoblast becomes syncytial. E) inner cell mass is temporarily deprived of nutrients.
In a reflex arc, what has the action potential carrying the signal to the CNS?
A. Efferent neuron B. Effector C. Afferent neuron D. Receptor