Semen contains all of the following components EXCEPT:
a. Sperm
b. Epididymal fluid
c. Prostatic fluid
d. Bulbourethral fluid
e. Seminal fluid
Ans: b. Epididymal fluid
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The middle primary germ layer is called ________, which gives rise to a gelatinous material called ________, which then gives rise to different types of connective tissue such as bone, cartilage, and blood.
A. ectoderm; mesenchyme B. ectoderm; stem cells C. mesoderm; mesenchyme D. mesoderm; fibroblasts E. endoderm; mesenchyme
The cardiovascular system of a newborn must be adjusted after the infant takes its first breath. Which of the following is also true?
A) The ductus arteriosus constricts and is converted to the ligamentum arteriosum. B) The urinary system is activated at birth. C) The foramen ovale between the atria of the fetal heart closes at the moment of birth. D) The ductus venosus is disconnected at the severing of the umbilical cord and all visceral blood goes into the vena cava.
What are the afferent vessels that carry blood back to the heart?
A. Arteries B. Veins C. Capillaries D. Arterioles
Which sensory receptors are located in the muscles, tendons, and joints?
a. Superficial b. Deep. c. Visceral. d. Pain.