The aortic sinus
A. is the first branch off the ascending aorta.
B. gives rise to the right and left coronary arteries.
C. contains oxygenated blood.
D. All of the above
Answer: D
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All of the following statements refer to events of tissue repair. Put the events in proper numbered order according to the sequence of occurrence. The initial event, the injury, is already indicated as number one.
1. The skin receives a cut that penetrates into the dermis and bleeding begins. 2. Epithelial regeneration is nearly complete. 3. Granulation tissue is formed. 4. Blood clotting occurs and stops the blood flow. 5. The scar retracts. 6. Macrophages engulf and clean away cellular debris. 7. Fibroblasts elaborate connective tissue fibers to span the break.
During the __________phase following orgasm, sympathetic vasoconstrictor impulses slow the inflow of blood into the penis
Fill in the blank(s) with correct word
What type of salivary reflex would be triggered by a pavlovian stimuli?
a. simple b. conditioned c. unconditioned d. two of these.
After ovulation, the ovary secretes
A) luteinizing hormone. B) estrogen. C) progesterone. D) FSH. E) both estrogen and progesterone.