Mission 6 Midterm

The average length of the uterine (menstrual) cycle is ________ days.

28

How many spermatids are produced after the completion of meiosis II during spermatogenesis?

4

The following is a list of structures of the male reproductive tract 1 - ductus deferens 2 - urethra 3 - ejaculatory duct 4 - epididymis The correct order in which spermatozoa pass through these structures from the testes to the penis is

4. Epididymis 1. Ductus Deferens 3. Ejaculatory Duct 2. Urethra

A rise in glucocorticoid levels causes which of the following?

A decline in the production of both ACTH and CRH

The Vagina

A muscular, elastic passageway that extends from the uterus to the outside of the body

The pituitary hormone that controls the release of glucocorticoids is

ACTH

The posterior pituitary gland secretes

ADH (vasopressin) and oxytocin

One hormone that is released from the adrenal medulla is

Adrenal Medulla secretes epinephrine and norepinephrine

Target cells of hypothalamic releasing and inhibiting hormones are located in the

Anterior Pituitary

Renal columns are

Bundles of tissue that lie between pyramids and extend from the renal cortex toward the renal sinus

The hormone that is released by the kidneys in response to low oxygen levels in kidney tissues is

Erythropoietin

Which of the following primarily targets the gonads (ovaries and testes)?

FSH

Two hormones referred to as gonadotropins are

FSH and LH

Hormones from the ________, which travel in the hypophyseal portal vessels, alter the activity of the anterior pituitary.

Hypothalamus

As secondary follicles develop, FSH levels decline due to the negative feedback effects of which hormone?

Inhibin

Which of the following is the pancreatic hormone that is released when blood glucose levels rise?

Insulin

Which anterior pituitary lobe hormone targets the interstitial cells of the testes?

LH

When the level of ADH (antidiuretic hormone) increases,

Less urine is produced

Water reabsorption occurs passively through the process of ________.

Osmosis

The female gonad is called a(n) ________.

Ovary

Which of the following is released by the posterior pituitary?

Oxytocin and ADH (vasopressin)

Melatonin is the hormone produced by the ________.

Pineal Gland

Preparation of the uterus for implantation results from stimulation by

Progesterone

The principal hormone secreted by the corpus luteum, which prepares the uterus for pregnancy, is

Progesterone

Seminalplasmin, an antibiotic that may help prevent urinary tract infections in males, is present in fluid secretions from the ________.

Prostate Gland

Hypothalamic hormones that stimulate the synthesis and secretion of one or more hormones in the anterior lobe are called

Releasing Hormones

The large, funnel-shaped chamber that connects to the ureter is called the

Renal Pelvis

Considering the spatial relationship of the kidneys, the ________ kidney often sits slightly ________ than the ________ kidney.

Right; lower; left

steroid hormones

Secreted by adrenal cortex; Derived from cholesterol; Enter the target cells and have a direct effect on the DNA of the nucleus

The ejaculatory duct in males is produced by the junction of the ductus deferens with the ________.

Seminal Gland Duct

The hormone oxytocin

Stimulates milk let-down Promotes uterine contractions

The process of emission is under the control of

Sympathetic Nervous System

Hormones from which of the following glands are responsible for the calorigenic effect?

Thyroid Gland

Hormones produced by the ________ are derived from molecules to which iodine atoms have been attached.

Thyroid gland

Triiodothyronine is a hormone secreted by the

Thyroid gland; Triiodothyronine is T3

The organ that provides mechanical protection and nutritional support for the developing embryo is the

Uterus

The zone of the adrenal cortex closest to the capsule is the

Zona Glomerulosa

The release of parathyroid hormone is controlled by

blood calcium levels

Cells of the adrenal cortex produce

corticosteroids

Major calyces are

large branches of the renal pelvis

The process of arousal is under the control of

parasympathetic nervous system

The ion pumps sensitive to aldosterone

reabsorb sodium ions from the tubular fluid

In response to decreased levels of aldosterone, the kidneys would likely produce

urine with a higher concentration of sodium ions

The outer zone of the adrenal cortex produces

zona glomerulosa: The outermost layer of the adrenal cortex, responsible for producing mineralocorticoids such as aldosterone

In adult males, the testes secrete ________

androgens; testosterone