Quiz on Hormones and Physiology

The hormones of the anterior pituitary gland include:

• LH, FSH, ACTH, PRL, ADH

• ADH, Oxytocin, TSH, CRH, TRH

• ADH, Vasopresin, PRL

• ACTH, TSH, MSH, GH, FSH, LH

• TSH, ACTH, CRH, PRL, GH

The preganglionic fibers of the parasympathetic nervous system have the characteristic of:

• Having myelin, short axons

• Having myelin, long axons

• Lacking myelin, short axons

• Lacking myelin, long axons

• Lacking myelin, equal length to postganglionic fibers

The chemical substances that strongly stimulate HCl secretion in the stomach are:

• Gastrin, enterogastrin, secretin

• Vagus nerve, gastrin, histamine, somatostatin

• Vagus nerve, enterogastrin, histamine, gastrin

• Gastrin, chymosin, enterogastrin, vagus nerve

• Acetylcholine, histamine, gastrin, trypsin

The placenta secretes the hormones:

• HCG, Testosterone, estrogen

• HCG, Estrogen, progesterone

• HCG, inhibin, adrenaline

• HCG, adrenaline, noradrenaline

The main cause of the descent of the testis into the scrotum in newborns is due to:

• The effect of GnRH from the hypothalamus

• The effect of GH from the anterior pituitary

• The level of testosterone secreted during the fetal period in the 7th-9th month

• The presence of HCG from the placenta

Vital capacity:

• Is the maximum volume of air exhaled

• Represents the maximum capability of a single breath

• Increases with age and decreases with height

• Represents the maximum capacity of the lungs

When exhaling normally:

• The expiratory muscles contract, the thoracic cavity volume decreases

• The pressure in the pleural cavity is lower, the alveolar pressure decreases

• The inspiratory muscles relax, the thoracic cavity volume decreases, the alveolar pressure is greater than atmospheric pressure

• The pressure in the thoracic cavity increases more than atmospheric pressure

Na+ in the proximal tubule is reabsorbed according to:

• The high electrochemical gradient of Na+ between the cell and the lumen

• Facilitated diffusion along with glucose or amino acids at the cell apex

• Secretion of NH3 pulling K+

• Increased secretion of aldosterone

Diastolic blood pressure is the blood pressure:

• Depends on the tension of the vessel wall

• Depends mainly on blood volume

• Normally has a value of 40-90 mmHg

• Decreases when the elasticity of the vessel decreases

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