Practical #6 – Pre-Lab Questions

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In its excretory role, the urinary system is primarily concerned with the removal of ______ wastes from the body.
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Nitrogenous
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The _____ performs the excretory and homeostatic functions of the urinary system.
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Kidneys
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The ____ of the kidney is segregated into triangular regions with a striped appearance.
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Medulla
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What do we call the anatomical units responsible for the formation of urine?
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Nephrons
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This knot of coiled capillaries, found in the kidneys, forms the filtrate. It is the?
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Glomerulus
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As the renal artery approaches a kidney, it is divided into branches known as the?
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Segmental Arteries
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The section of the renal tubule closet to the glomerular capsule is the?
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Proximal Convoluted Tubule
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The _____ arteriole drains the glomerular capillary bed.
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Efferent
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During tubular re-absorption, water and solutes are removed from the tubular fluid and transported into the ____.
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Blood
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The _____ urethral sphincter consists of skeletal muscle and is voluntarily controlled.
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External
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Normal urine is usually pale yellow to amber in color, due to the presence of?
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Urochrome
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The average PH value of urine is?
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6.0
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T/F – Glucose can usually be found in all normal urine.
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False
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______, like other blood proteins, is/are too large to pass through the glomerular filtration membrane and is/are normally not found in urine.
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Albumin
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The appearance of red blood cells in the urine known as ______ always indicates pathology of the urinary system.
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Hematuria
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The presence of white blood cells or pus in the urine, known as ______, is consistent with inflammation of the urinary tract.
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Pyuria
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_____ are hardened cell fragments formed in the distal convoluted tubules and collecting ducts and flushed out of the urinary tract.
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Casts
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T/F – When testing the PH of the urine, you will use the same piece of wide-range PH paper for each test.
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False
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What is a precipitate?
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The crystallization (being solid) of urine.
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The appearance of bile pigments in the urine, a condition known as _____, can be an indication of liver disease.
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Bilirubinuria
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The essential organs of reproduction are the ____, which produce sex cells.
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Gonads
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The paired oval testes lie in the _____ outside the abdominopelvic cavity, where they are kept slightly cooler than body temperature.
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Scrotum
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After sperm are produced, they enter the first part of the duct system called the _____.
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Epididymis
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The prostate, seminal glands, and bulbo-urethral glands produce _____.
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Seminal Fluid
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The _______ produce testosterone, the hormonal product of the testis.
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Interstitial Cells
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The endocrine products of the ovaries are estrogen and _____.
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Progesterone
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Human gametes contain _____ chromosomes.
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23
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The end product of meiosis is?
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Four Haploid Daughter Cells
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A grouping of four chromatids, known as a __(1)__, occurs only during __(2)__.
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1. Tetrad 2. Meiosis
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_____ extend inward from the periphery of the seminiferous tubule and provide nourishment to the spermatids as they begin their transformation into sperm.
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Sustenticular Cells
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The _____ of the sperm contains enzymes involved in the penetration of the egg.
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Acrosome
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Within each ovary, the immature ovum develops in a sac-like structure called a _____.
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Follicle
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As the primordial follicle grows and its epithelium changes from squamous to cuboidal cells, it becomes a(n) _______ and begins to produce estrogen.
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Primary Follicle
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The ______ is/are homologous to the penis.
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Clitoris
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The ______ is a pair shaped organ that houses the embryo or fetus during its development.
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Uterus
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The _____, the thick mucosal lining of the uterus, has a superficial layer that sloughs off periodically.
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Endometrium
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A developing egg is ejected from the ovary at the appropriate stage of maturity in an event known as _____.
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Ovulation
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A sudden release of luteinizing hormone (LH) by the anterior pituitary triggers _____.
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Ovulation
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The _____ is a solid glandular structure with a scalloped lumen that develops from a ruptured follicle.
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Corpus Luteum
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The ______ phase of the female cycle occurs from days 1-5 and is signaled by the sloughing off of the thick functional layer of the endometrium.
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Menstrual

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