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56 Cards in this Set
- Front
- Back
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Testes |
Produce sperm |
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Interstitial cells |
Produce androgens |
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Seminal vesicles |
Produce viscous alkaline seminal fluid. 70% of volume in semen |
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Semen |
Contains nutrients (fructose) which protects and activates sperm, and facilitates their movement. |
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How much semen is ejactulated |
2-5 ml which contains millions of sperm |
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Spernatogenesis |
Sequence of events that produces sperm in the seminiferous tubules of the testes |
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Spermatohonia |
Form spermatocytes via mitosis |
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Spermatocytes |
From spermatids via meiosis |
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Spermiogenesis |
Spermatids become sperm |
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Spermatozoa can not |
Fertilize an oocyte |
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Sertoli cells |
Large supporting cells |
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Nurse cells |
Secrete testicular fluid into lumen for transport of sperm |
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Ovaries |
Female gonads |
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Ovaries produce |
Gamtes |
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Ovaries secrete |
Sex hormones |
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Functions of the ovaries |
Production of immature female gametes Secretion of female sex hormones Secretion of inhibin |
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3layers of the uterine wall |
Perimetrium Myometrium Endometrium |
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Perimetrium |
Serous layer |
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Myometrium |
Interlacing layers of smooth muscle |
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Endometrium |
Mucosal lining |
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Layer shed during menstration |
Stratum functionalis |
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Forms new after menstration |
Stratum basalis |
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Uterine arteries |
Arise from internal iliacs |
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Arcuate arteries |
In the myometrium |
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Oogenesis |
Production of female gametes Begins in the fetal period |
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Ovarian cycle |
Monthly serious of events associated with the maturation of an egg |
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Follicular phase |
Phase which the follicle matures |
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Ovulation |
Ovary wall ruptures and expels the secondary oocyte with its corona radiata |
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Luteal phase |
Corpus luteum progesterone and estrogen |
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Function s of corpus luteum |
Produces inhibin, progesterone and estrogen These hormones inhibit FSH and LH release |
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Which of the following is not true about peptide hormones |
They act on interstellar receptors that directly target genes |
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Which of the following is not a mechanism of hormone action |
Preventing mitosis |
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Steroid hormones function by what |
Entering the nucleus of a cell and initiating or altering the expression of a gene |
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Long distance chemical signals that trouble in the blood are what |
Hormones |
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In our example of a plasma membrane second messenger system which of the following is the second messenger |
Camp |
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The most complex edocrine sponses involve the what |
Hypothalamus |
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The ability of a specific tissue or organ to respond to the presence of a hormone is dependent on |
The presence of the appropriate surface receptors on target cells |
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Hormones are synthesized and released in response to |
All the above |
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Which of the following is incorrect regarding the posterior pituitary gland |
the hypothalamus directs the posterior pituitary to synthesize adh and oxytocin when needed |
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when more than one hormone produces the same effect on target cell is it is called |
Synergism |
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Thyroid hormone contains the element |
Iodine |
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Catecholamines |
Are screted by the adrenal gland Are typically released due to neural stimulus Are epineohrine and noreoinephrine |
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Which of the choices below determines the direction of respiratory gas movement |
The partial pressure gradient of each gas |
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The sea shape of the tracheal cartlidge is important because |
Large masses of food can pass through the esophagus during swallowing |
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Pulmonary ventilation refers to |
The movement of air into and out of the lungs |
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Henry's law states that |
The volume of gas that will dissolve in a liquid is proportional to both the solubility of the gas and its pressure |
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Which of the following is not true concerning gases in respiration |
The partial pressure for co2 is very steep |
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Which statement about co2 is incorrect |
Morcilla to dissolve the blood plasma than is carried in the RBCs |
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How is the bulk of carbon dioxide carried in the blood |
As the bicarbonate ion in the plasma after first entering the red blood cells |
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Carbon dioxide and water combine to form |
carbonic acid |
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When does oxyhemoglobin formed during respiration |
During external respiration |
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Which of the following is not a reason for the partial pressure of gases in the alveoli to differ from pressures in the Earth's atmosphere |
Nitrogen retention in the alveoli |
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The term hypercapnia refers to |
Elevated Pco2 |
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In quiet breathing |
inspiration involves muscular contractions and expiration is passive |
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Which of these is responsible for the conversion of carbon dioxide and water into carbonnyc acid and vice versa |
Carbonate anhydrase |
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Which direction does carbon dioxide move in internal respiration |
From the tissue cells into the blood |
