True & False Final Questions Flashcards
The highest level of structural organization in humans is the organ level.
False.
The endocrine system is the fastest acting body control system.
False.
The spleen and the tonsils are part of the digestive system.
False.
The lymphatic system collects fluids leaked by the cardiovascular system and return them to the bloodstream.
True.
Excretion is the process of removing waste from the body.
True.
Most homeostatic control mechanisms are negative feedback reactions.
True.
As body temperature drops below normal, chemical reactions proceed to rapidly and body proteins begin to break down.
False.
The sacral region is on the ventral anterior body surface.
False.
The heel of the foot constitutes the planter region.
False.
Proximal means farther from the origin of a body part.
False.
The hypogastric region is directly superior to the umbilical region.
False.
The thoracis cavity is separated from the of Domino pelvic cavity by the diaphragm.
True.
The spinal cavity is part of the ventral body cavity.
False.
The dorsal body cavity is subdivided into four quadrants and nine regions.
F
There is no physical structure that separates the abdominal cavity from the pelvic cavity.
True
Myla nation of nerve fibers is the central nervous system is the job of the oligodendrocyte.
True.
Oligodendrocytes produce myelin sheaths in the PNS.
False.
The nodes of ranvier are found at regular intervals only on myelinated peripheral nerve fibers.
True.
Cell bodies of sensory neurons are always located in ganglia lying outside the central nervous system.
True.
And afferent sensory neuron carry stimuli from the central nervous system to the effector.
False.
Sensory neurons carry information away from the CNS.
False.
Bipolar neurons are rare in adults.
True.
Be all or none phenomenon is applied to nerve condition states that the whole nerve cell must be stimulated for conduction to take place.
False.
Reflexes are rapid predictable an automatic responses to stimuli.
True.
Saltatory conduction occurs due to the presence of salt NaCL around the neuron.
False.
A polarized neuron has fewer positive ions inside in comparison to the outside of the neuron.
True.
Difficulty in breathing may reflect damage to respiratory centers located in the cerebellum.
False.
One of the major functions of the pons is to produce releasing factors that control the function of the anterior pituitary.
False.
Part of the diencephalon structure is formed by the hypothalamus.
True.
Cerebrospinal fluid circulates within the ventricles of the brain and also in the subarachnoid space outside the brain.
True.
The collection of spinal nerves at the inferior end of the spinal cord is called the cuada equina.
True.
There is no possibility of damaging the spinal cord below the third lumbar vertebra.
True.
The glossopharyngeal nerve is the only carnal nerve pair that contains sensory fibers.
False.
Carnial nerve XI is the accessory nerve that controls tongue movement.
False.
There are 31 pairs of Carniel nerves and 12 pairs of spinal nerves.
False.
The musculocutaneous nerve is a major nerve of the branchial plexus.
True.
Sympathetic postganglionic fibers release norepinephrine and the preganglionic axon releases acetylcholine.
True.
In contrast to the parasympathetic division, The synthetic division has numerous ganglionic neurons in the gray matter of the spinal cord.
False.
Most body organs are innervated by only the sympathetic division of the nervous system.
False.
Neurons in adults do not undergo mitosis.
True.
Exit crane glands are considered ductless glands because they release their hormones into the blood or lymph.
True.
The endocrine system is generally faster than the nervous system and coordinating the activities of body cells.
False.
Most hormones are regulated by a negative feedback mechanism.
True.
Releasing and inhibiting hormones produced by the hypothalamus travel to the anterior pituitary through the blood of the portal circulation.
True.
The pituitary gland is found in the brain closely associated with the hypothalamus.
True.
Hypersecretion of growth hormone during childhood leads to pituitary dwarfism.
False.
The target tissue of prolactin is the female breast.
True.
Neurosecretory cells transport oxytocin and antidiuretic hormone to the anterior pituitary gland for storage.
False.
The posterior pituitary gland stores the hormones it releases, but does not manufacture them.
True.
Vasopressin is another name for antidiuretic hormone.
True.
Hyposecretion of FSH or LH leads to sterility in both females and males.
True.
Alcohol can suppress the production of antidiuretic hormone.
True.
Diabetes insipidus is caused by hypersecretion of insulin.
False.
Thyroid hormone is actually to iodine containing hormones called T3 and T4.
True.
Hypersecretion of thyroxine and children can result in cretinism.
True.
Myxedema is the result of hyperthyroidism.
False.
Parathyroid hormone is the most important regulator of blood calcium concentration.
True.
Calcitonin is a hormone antagonistic and parathormone in the regulation of blood calcium concentration.
True.
Mineralocorticoids help regulate both water and electrolyte balance in body fluids.
True.
The adrenal glands are similar to the pituitary gland in that they have both glandular and neural tissue.
True.
The adrenal cortex is made up of neural tissue.
False.
Glucocorticoids, glucagon, and epinephrine are hyper glycemic hormones.
True.
The glucocorticoids help the body handle long-term stress primarily by increasing blood glucose levels.
True.
Both male and female sex hormones are produced by the adrenal cortex throughout life in relatively small amounts.
True.
Hypersecretion of the sex hormones may lead to masculinization in both men and women.
True.
The adrenal Medela and posterior pituitary are both composed of nervous tissue.
True.
Adrenaline is also known as epinephrine.
True.
The pancreas produces both glucagon and glucocorticoids.
False.
Melatonin production peaks during the night to help regulate the body’s day night cycle.
True.
The thymus gland is located in the neck wrap around the trachea.
False.
The pancreas has both endocrine and exocrine functions.
True.
The placenta is a temporary Oregon formed in the uterus for a pregnant woman.
True.
The medial indentation of the kidney were several structures such as the ureturs, renal blood vessels, and nerves enter and exit the kidney is called the hilus.
True.
The tiny filtering structures of the kidneys are called nephrons.
True.
The lumen surfaces of the tubule cells with in the proximal convoluted tubule’s are covered in microvilli.
True.
The region of the renal tubule closest to the glomerular Capsule is the distal convoluted tubule.
False.
The peritubular capillary bed arises from the afferent arteriole.
False.
Blood proteins and blood cells are too large to pass through the filter ration membrane and should not be found in filtrate.
True
Tubular reabsorption begins in the glomerulus.
False
Nitrogenous waste products such as urea, uric acid, and creatine are excreted from the body in urine rather than reabsorbed.
True.
The pigment that gives you’re in its characteristic yellow color is urochrome.
True.
The specific gravity of urine is typically lower in the specific gravity of pure water.
False.
Tubular secretion, which seems to be important for removal of substances not already in the filtrate, is essentially reabsorption in reverse.
True.
Urine moves down the Raiders into the bladder due to gravitational pull alone.
False.
The internal urethra sphincter is in voluntary.
True.
That urethra, which carries urine exiting the bladder by peristalsis, is typically shorter in females then in males.
True.
Following the micturition reflex, it is impossible to postpone bladder emptying.
False.
The fluid stored inside cells is referred to as extracellular fluid ECF
False.
The movement of water from one fluid compartment to another has no effect on blood volume and blood pressure.
False.
Anti-diuretic hormone 80 H causes increased water lost through the urine.
False
The most important trigger for aldosterone release is the renin angiotensin mechanism, mediated by the renal tubules.
True.
A person with arterial blood pH above 7.45 is said to have acidosis.
False.
The kidneys help maintain acid-base balance of the blood by excreting bicarbonate ions.
True.
When blood pH becomes too acidic, the tubules cells of the kidneys excrete bicarbonate ions and retain hydrogen ions.
False.
Sexually transmitted disease is STDs are primarily infections of the reproductive tracks but may also cause urinary tract infections.
True.
Incontinence is often the final outcome of the urinary system during the aging process.
True.
The trip through the coiled 20 foot 6 m long epididymis takes about 20 days.
True.
The rete testes connects the epididymis to the ductus deference.
False.
The smooth muscle walls of the ductus deference also called vas deferens can create peristaltic waves that rapidly squeeze the sperm forward.
True.
Urine and sperm are able to pass through the urethra at the same time.
False.
The portion of the male urethra that is surrounded by the prostate is called the membranous urethra.
False.
Prostatic cancer is the common reason men consult a urologist because it is the leading type of cancer in adult men.
False.
The bulbourethral glands are located inferior to the prostate gland and produce a clear mucus secretion that aids lubrication during sexual intercourse.
True.
Sperm swim faster in an alkaline environment and are more sluggish in an acidic environment.
True.
Viable sperm cannot be produced at below body temperature.
False.
In erection results from blood filling the spongy erectile tissue of the penis.
True.
One primary spermatocyte will undergo meiosis two ultimately form for sperm.
True.
Spermatids have 46 chromosomes.
False.
The acrosome helps a sperm penetrate the follicle cells that surround the egg.
True.
The hormone that causes secondary sex characteristics in males is progesterone.
False.
Ovaries are the size and shape of almonds and contain many tiny saclike structures called ovarian follicles, each of which consists of an immature egg surrounded by one or more layers of follicle cells.
True.
After ovulation, the egg is transformed into a corpus luteum.
False.
Oocytes are carried toward the uterus by both celia and peristalsis
True.
The innermost layer of the uterus is called the myometrium.
False.
When a woman is not pregnant the endomaterial lining of the uterus is sloughed off every 28 days.
True.
Detection of uterine cancer is best accomplished by a yearly Pap smear.
False.
The external genitalia of a female is also called the vulva.
True.
The diamond shaped region of the females external genitalia found between the anterior end of the labial folds, The anus posteriorly, and the ischial tuberosities is called the perineum.
True.
The cyclic changes that occur monthly in the ovary constitute the ovarian cycle.
True.
A primary oocyte undergoes meiosis and produces a secondary oocyte and a polar body.
True.
Ovulation occurs during the secretory phase of the menstrual cycle.
False.
Estrogens cause the appearance of secondary sex characteristics and females.
True.
Penetration of a secondary oocyte Buy a sperm stimulates its nucleus to undergo the second meiotic division.
True.
Ovulation usually occurs on or about day 14 of the menstrual cycle.
True.
Breast cancer is the leading cause of death in American women, with self examination and mammograph he being the best forms of early detection.
True.
The rapid mitotic cell division that occurs after the fertilization of an egg is known as cleavage.
True.
The two functional areas of the last sites are the morula and the trophoblast.
False.
The endoderm gives rise to the nervous system and the epidermis of the skin.
False.
Beginning at the ninth week of development, the embryo is referred to as a fetus.
True.
False labor is caused by Braxton Hicks contractions.
True.
The cervix typically dilated to about 10 cm during the dilation stage of labor.
True.
The placenta and it’s attached fetal membranes, delivered during the placental stage of labor, is called the afterbirth.
True.
Menopause generally occurs between ages 10 and 15 in females
False.
