Question 28 (1 point) The total amount of exchangeable air is described as: Ques

Question

Question 28 (1 point)

The total amount of exchangeable air is described as:

Question 28 options:

Vital Capacity

Dead Space Volume

Tidal Volume

Expiratory Reserve Volume

Inspiratory Reserve Volume

Question 40 (1 point)

All of the following make up the three important acid-base buffer systems in body fluids except:

Bicarbonate Buffer

Phosphate Buffer

Protein Buffer

Sodium/Potassium Buffer

Question 41 (1 point)

The primary source of estrogens is the:

Ovaries

Posterior Pituitary

Uterus

Adrenal Glands

Question 42 (1 point)

Once the corpus luteum is formed, the level of which of the following hormones increases?

FSH

Progesterone

Estrogen

LH

Question 43 (1 point)

The organ of the female reproductive system is equivalent to the male peni(s) is the:

Vagin( there is an a at the end of this word)

Mons Pubis

Clitori (chegg wouldnt let me add the s at the end)

Labia Minor

Question 44 (1 point)

Which of the following statements about the uterine tubes is not correct?

Fimbriae are located at the end of the uterine tube near the ovary.

The tube penetrates the uterine wall and empties into its cavity.

Valves are found in the inner layer of the ovarian tube to prevent the egg from

Cilia are in the lining of the uterine tube that help move the egg toward the uterus.

Question 45 (1 point)

The lower segment of the uterus that joins the vagin(a) is the:

Myometrium

Hymen

Fundus

Cervix

Question 46 (1 point)

The organs of the central nervous system are the brain and:

Spinal Cord

Cranial Nerves

Meninges

Spinal Nerves

Question 47 (1 point)

Which of the following structures connects the right and left cerebral hemispheres?

Longitudinal Fissure

Fourth Ventricle

Corpus Callosum

Medulla Oblongata

Vital Capacity

Dead Space Volume

Tidal Volume

Expiratory Reserve Volume

Inspiratory Reserve Volume

Question 40 (1 point)

All of the following make up the three important acid-base buffer systems in body fluids except:

Question 40 options:

Bicarbonate Buffer

Phosphate Buffer

Protein Buffer

Sodium/Potassium Buffer

Save

Question 41 (1 point)

The primary source of estrogens is the:

Question 41 options:

Ovaries

Posterior Pituitary

Uterus

Adrenal Glands

Save

Question 42 (1 point)

Once the corpus luteum is formed, the level of which of the following hormones increases?

Question 42 options:

FSH

Progesterone

Estrogen

LH

Save

Question 43 (1 point)

The organ of the female reproductive system is equivalent to the male peni(s) is the:

Question 43 options:

Vagin( there is an a at the end of this word)

Mons Pubis

Clitori (chegg wouldnt let me add the s at the end)

Labia Minor

Save

Question 44 (1 point)

Which of the following statements about the uterine tubes is not correct?

Question 44 options:

Fimbriae are located at the end of the uterine tube near the ovary.

The tube penetrates the uterine wall and empties into its cavity.

Valves are found in the inner layer of the ovarian tube to prevent the egg from

Cilia are in the lining of the uterine tube that help move the egg toward the uterus.

Save

Question 45 (1 point)

The lower segment of the uterus that joins the vagin(a) is the:

Question 45 options:

Myometrium

Hymen

Fundus

Cervix

Save

Question 46 (1 point)

The organs of the central nervous system are the brain and:

Question 46 options:

Spinal Cord

Cranial Nerves

Meninges

Spinal Nerves

Save

Question 47 (1 point)

Which of the following structures connects the right and left cerebral hemispheres?

Question 47 options:

Longitudinal Fissure

Fourth Ventricle

Corpus Callosum

Medulla Oblongata

Save

Explanation / Answer

1) Option 1 is the correct answer.

Vital capacity is descibed as the total amount of exchangeable air, or total amount of air that can move in and out of lungs. Inspiratory capacity is the total amount of air that a person can inspire after a tidal volume. Inspiratory reserve volume is the volume of air that can be forcibly inspired after a normal TV inspiration. Expiratory reserve volume is the essentially opposite of IRV; amount of air that can be forcibly expired after a normal tidal expiration

2) Option 4 is the correct answer.

The three major buffer systems of our body are carbonic acid bicarbonate buffer system, phosphate buffer system and protein buffer system.

Carbonic acid-bicarbonate system - Most carbon dioxide generated in tissues in converted to carbonic acid, which dissociates into a hydrogen ion and a bicarbonate ion. Hydrogen ions released by dissociation of organic or fixed acids combine with bicarbonate ions, elevating the Pco2; additional CO2 is lost at the lungs

Protein buffer systems - These depend on the ability of amino acids to respond to changes in pH by accepting or releasing hydrogen ions. If the pH rises, the carboxyl group of the amino acid dissociates to release a hydrogen ion; if the pH drops, the amino group accepts an additional hydrogen ion to form an amino ion (NH3+) and the carboxylate ion can accept a hydrogen ion to form a carboxyl group.

Phosphate buffer system - This buffer system consists of H2PO4-, a weak acid that, in solution, reversibly dissociates into a hydrogen ion and HPO42-. The phosphate buffer system plays a relatively small role in regulating the pH of the ECF, b/c the ECF contains far higher concentrations of bicarbonate ions than phosphate ions; however, it is important in buffering the pH of the ICF.

3) Option 1 is the correct answer.

In a nonpregnant female, the primary source of estrogens and progesterone are the ovaries. In premenopausal women, the ovaries are the principle source of estradiol, which functions as a circulating hormone to act on distal target tissues.

4) Option 2 is the correct answer.

The corpus luteum is a temporary endocrine structure in female ovaries and is involved in the production of relatively high levels of progesterone, moderate levels of estradiol, inhibin A and small amounts of estrogen. During each menstrual cycle, there is a rise in follicle stimulating hormone secretion in the first half of the cycle that stimulates follicular growth in the ovary. After ovulation the ruptured follicle forms a corpus luteum that produces high levels of progesterone. This inhibits the release of follicle stimulating hormone. Towards the end of the cycle the corpus luteum breaks down, progesterone production decreases and the next menstrual cycle begins when follicle stimulating hormone starts to rise again.

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