1)Which of these are the classes of hormones found in the human body? a. amines,

Question

1)Which of these are the classes of hormones found in the human body?

a. amines, peptides, steroids

b. peptides, steroids, cholesterols

c. steroids, androgens, estradiols

d. androgens, testosterone, amines

e. testosterone, estrogen, progesterone

2) Which of these hormones is not released by the anterior pituitary?

a. FSH

b. Growth hormone

c. TSH

d. ADH

3) What is the pathway of Sperm through the male reproductive tract

I. Vas deferens

II. Urethra

III. Seminiferous tubules

IV. Epididymis

a. I, II, III, IV

b. IV, III, II, I

c. III, II, IV, I

d. III, IV, I, II

Explanation / Answer

1. Option a is correct. hormones may be classified intofive major classes . I. amines: eg- T3, T4, epinephrine, norepineph­rine. II. Peptide hormones: eg- Oxytocin and vasopressin III. Protein hormones: Insulin, glucagon, STH etc IV. Steroid hormones: These are composed of lipids derived from cholesterol, e.g. Testosterone, Estrogen, Proges­terone etc. V. Eicosanoids: eg-prostaglandin.

2. Option d is correct. ADH is not secreted by anterior pituitary. It is secreted from posterior pituitary.

3. Option d is correct. Seminiferous tubules contains stem cells which is staring cells for sperm formation. From seminiferous tubule stem cells (converts into primary spermatocytes) comes to epididymis and through vas defrence (primary spermatocytes converts into secondary spermatocytes which finally generates sperms) moves to the urethra and ejaculation occurs.

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