__________ cells constrict the afferent arterioles and secrete renin.
Fill in the blank(s) with the appropriate word(s).
Juxtaglomerular
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Which of the following is not true of hemoglobin?
A. It makes up about 1/3 of a red blood cell. B. Each hemoglobin molecule consists of 4 protein subunits. C. Each hemoglobin molecule can bind to up to 20 oxygen molecules at a time. D. Oxyhemoglobin is bright red, and deoxyhemoglobin is dark red. E. All of these are true of hemoglobin.
Which of the following fossae are potential sites for direct inguinal hernias?
(A) supravesical (B) medial inguinal (C) lateral inguinal (D) ischiorectal (E) iliac
Which of the following glands or organs produces hormones that tend to decrease blood calcium levels?
A) pineal gland B) thyroid C) parathyroid D) spleen
How is sound produced in the larynx?
What will be an ideal response?