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Terms in this set (65)
The most abundant carbohydrate produced by the seminal vesicles
Corpora amylacea are a characteristic feature of the...
Which of the following groups of three structures all have a tunica albuginea?
Ovary, testis, and penis
A lubricating, clear mucus is produced by the...
Bulbourethral glands (cowpers)
Androgen-binding protein (ABP) is produced by...
Testosterone is produced by
Interstitial Cells of Leydig
The cell responsible for the formation of 2 compartments in the seminiferous tubules and the creation of a blood-testis barrier is the...
Residual bodies left over from the process of spermatogenesis are eliminated by...
Phagocytosis by Sertoli cells
In men, the changes that occur between the spermatogonia stage and the formation of the spermatozoa take about...
In a process called spermiogenesis, the acrosomal vesicle is derived from the
The blood-testis barrier is formed by
Interstitial (Leydig) cell functions are controlled by
The convoluted regions of the seminiferous tubules of the testes empty directly into
the tubuli recti
functions in the capacitation of sperm
*susceptible to damage by body temperature.
*present in both adult and fetal males.
*capable of both mitosis and meiosis.
(not - found closest to the lumen of seminiferous tubules)
The testes are surrounded by a thick connective tissue capsule called the
stimulated by Luteinizing Hormone
The interstitial cells of Leydig
are phagocytic for cytoplasm removed from spermatids during spermiogenesis.
In the production of male germ cells
the acrosomal vesicle develops in the region of a spermatid embedded in the Sertoli cell.
can exhibit calcified concretions which decrease in number with advancing age of the individual.
*are products of the second meiotic division of secondary spermatocytes.
*are located next to the lumen of the seminiferous tubules.
*may exhibit an acrosome which contains several hydrolytic enzymes.
* are NOT capable of mitosis.
* may exhibit a cylinder of microtubules, the manchette, which surrounds the nucleus.
*contain Sertoli cells which rest on the basal lamina
*include a myoid cell layer located most peripherally
(dont contain testosterone secreting cells)
In the male reproductive system
the penile corpora cavernosa are surrounded by dense connective tissue.
The peritoneal layer that covers the anterior and lateral aspects of the testis is known as the
Primary spermatocytes are
*the accumulation of PAS positive granules in the Golgi complex of spermatids.
*elongation of spermatid nucleus.
* the reorganization of mitochondria along the proximal portion of the flagellum.
*microtubules extend from one of the centrioles of the spermatid to form the flagellum.
(not -activation of acrosomal lysosomal enzymes that hydrolyze the intercellular bridges between spermatids.)
Occur during Spermiogenesis
The histological characteristics of the ductus (vas) deferens include all of the following
*a narrow lumen lined by pseudostratified columnar epithelium
*a lamina propria rich in elastic fibers.
*a thick coat of smooth muscle arranged in three distinct layers.
*an association with the pampiniform venous plexus and testicular artery in the spermatic cord.
(not -an absence of a specialized modification on the surface of the epithelial cells)
A defect in the gene coding for follicle stimulating hormone (FSH) would probably result in
*a decrease in the amount of androgen-binding protein secreted by Sertoli cells.
* a reduction in the amounts of testosterone transported to the seminiferous tubules.
*a reduction in the amounts of inhibin secreted by Sertoli cells.
* a reduction in the numbers of spermatozoa.
The primary function of the blood-testis barrier is
protection of spermatogenic cells from an autoimmune reaction
* the separation of the gland into lobes by connective tissue septa.
*that it is composed of two distinct groups of glandular epithelia.
*an abundance of smooth muscle fibers surrounds the epithelium.
*the presence of concentrated bodies of glycoprotein in the glandular lumen.
(not - the secretion of most of the seminal fluid in the ejaculate.)
The interstitial cells of Leydig would have all of the following organelles and inclusions
*an abundance of smooth endoplasmic reticulum.
*a rich supply of lipid droplets.
*mitochondria to provide the energy for hormone synthesis.
*centrally located nuclei.
(not - stacks of ReR)
All of the following cells are adluminal in relation to the basal lamina of the seminiferous tubules
(not - myoid cells)
have both smooth and skeletal muscle in septa which divide the glands into lobes.
The bulbourethral glands (Cowper's glands)
The major clinical significance of the submucosal and main glands of the prostate is that
they can be the source of malignant cells causing cancer of the prostate.
*physical and nutritional support of the male gametes
* protection of the maturing gametes
*phagocytosis of cell debris
*secretion of extracellular proteins
(not inhibition of acrosome response)
is observed with the least frequency in the seminiferous tubules
cells is genetic variation introduced into the germ line
Puberty in males results from the induction of androgens synthesis in Leydig cells by
true statement in regards to spermiogenesis
it involves cytodifferentiation of spermatids
-initiated prior to puberty
-occurs in diploid cells
-completed in prostatic urethrea)
Which is the correct order for spermatogenic cell differentiation within the seminiferous tubules
spermatogonia, spermatocytes, round spermatid, elongating spermatid, testicular sperm
Sertoli cells are accurately described by which of the following statements
they provide protection, support, and nutrition for the development of sperm
Under the influence of LH, the production of androgenic hormone is a function of the
interstitial (Leydig) cells
Exhibits an ampulla near its termination
Lined by alternating simple cuboidal and ciliated columnar epithelium
Single Highly coiled duct
Number 10 - 20
Located in mediastinum Testis
Thickest musclular wall (3 layers)
portion of this duct is lined exclusively by sertoli cells
Contains corpora amylacea
Combined exocrine and endocrine functions
Secretory product is rich in acid phosphatase and citric acid
Produces 70% of ejaculate in humans
Secretions emptied directly into ejaculatory duct
Secretes inhibin and testosterone
Which of the following cell types can create an environment elevated in steroid hormones by producing steroid-binding proteins
The connective tissue sheath surrounding each semineferous tubule is the
Usually seen in prophase of first meiotic division
Largest spermatogenic cell type
Only spermatogenic cell type present before puberty
Product of spermiogenesis
Product of spermatocyctogenesis
Product of first meiotic division
Product of second meiotic division
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