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80 terms

NAS Final

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The male gonads have both sperm-producing and testosterone-producing functions and are called
testes
The fibrous connective tissue enclosing each testis is the
tunica albuginea
The exocrine function of the male testes is
sperm production
The actual "sperm-forming factories" of the male reproductive system that empty sperm into the rete testes are called the
seminiferous tubules
Androgens such as testosterone are produced by the
bulbouretheral glands
The correct descending order of the male duct syste m (from the inside to outside) is:
ejaculatory duct, epididymis, ductus deferens, urethra
Maturing sperm gain their ability to swim while in the
epididymis
Which is NOT a component of semen?
epididymal fluid
Thick, clear mucus that cleanses the urethra of acidic urine is produced by the
bulbourethral glands
Milky-colored fluid secreted from the prostate
activate sperm
Normal healthy semen has an approximate pH level of
7.2-7.6
Pregnancy is generally improbable with a sperm count:
under 20 million per milliliter
The final outcome of meiosis within both the testicles and the ovaries is:
four gametes
Each spermatid and ovum have:
23 chromosomes
Which of the following is NOT one of the secondary sex characteristics typical of males:
increased sex drive
Fertilization usually occurs in the:
uterine (fallopian) tubes
The process by which a mature egg is ejected from the ovary is called:
ovulation
The journey of the oocyte through the uterine tubes to the uterus following ovulation normally takes:
3-4 days
The superior rounded region of the uterus above the entrance of the uterine tubes is called the:
fundus
The narrow outlet of the uterus that projects into the vagina is called the:
cervix
the external female structure that corresponds to the male penis is the:
clitoris
The inner mucosal layer of the uterus that is sloughed off approximately every 28 days is called the:
endometrium
The hormone responsible for ovulation is:
lutenizing hormone
Days 15-28 of the menstrual cycle are known as:
the secretory phase
Which one of the following is NOT true of the proliferative state of the menstrual cycle:
the endometrium becomes thin and shiny in appearance
Which one of the following is NOT one of the secondary sex characteristics in young women:
decreased fat deposits beneath the skin
The corpus luteum is a special glandular structure of the ovaries that primarily produces:
progesterone
The mammary glands are:
modified sweat glands in both males and females
The clusters of specific glands that produce milk when a woman is lactating are called
alveolar glands
The tiny ball of 16 cells found freely floating in the uterine cavity is called a:
morula
Parturition is another term for:
childbirth
labor is initiated by prostaglandins and
oxytocin
The stage of labor that involves the delivery of the infant is the:
expulsion stage
The first menstrual period, which usually occurs at approximately age 13, is called:
menarche
Menopause, which ends childbirth ability, is considered to have occurred when a woman:
has gone a year without menstruation
Which one of the following is NOT one of the functions of the kidneys:
produce hormones that assist in digestion
Which of the following is NOT an organ found in the urinary system:
pancreas
Which one of the following terms describes the location of the kidneys:
retroperitoneal
The kidneys are aided in the excretion of fluids by the
lungs and skin
The triangular regions of the kidneys that striped in appearance and separated by the renal columns are the:
renal pyramids
As venous blood is drained from the kidney, which path does it follow:
cortical radiate veins, arcuate veins, interlobar veins,renal vein
The enlarged, cup-shaped closed end of the renal tubule that completely surrounds the glomerulus is called the:
Bowman's capsule
Starting from the glomerular capsule, the correct order of the renal tubule regions is:
proximal convoluted tubule, loop of Henle, distal convoluted tubule
The portion of the renal tubule that completely surrounds the glomerulus is the:
glomerular (Bowman's) capsule
Most nephrons are located within the renal:
cortex
Of the capillary beds associated with each nephron, the one that is both fed and drained by arterioles is the:
glomerulus
The peritubular capillaries arise from the ________, which drains the glomerulus.
efferent arteriole
The nonselective, passive process performed by the glomerulus that forms blood plasma without blood proteins is called:
filtration
Uric acid, a nitrogenous waste product, results fromt eh metabolism of:
nucleic acids
Which one of the following represents the correct order through which food passes in the alimentary canal:
mouth, pharynx, esophagus, stomach, small intestine, large intestine
The fold of mucous membrane that secures the tongue to the floor of the mouth and limits its posterior movements is called the
lingula frenulum
The submucosal and myenteric nerve plexuses that help regulate the mobility and secretory activity of the GI tract organs are both part of the:
autonomic nervous system
The release of food from the stomach into the small intestine is regulated by the:
pyloric sphincter (valve)
The small intestine extends from the:
pyloric sphincter to the ileocecal valve
Which one of the following is the middle section of the small intestine:
jejunum
Enzymes and bile are carried by the pancreatic duct and bile duct into the:
duodenum
The primary function of the small intestine is:
absorption of nutrients
Which one of the following is NOT a subdivision of the large intestine:
duodenum
The organ responsible for drying out indigestible food residue through water absorption and the elimination of feces is the:
large intestine
The accessory digestive organ that produces enzymes that break down all food groups in the:
pancreas
The conducting passageways of the respiratory system include all of the following structures EXCEPT:
nose
The respiratory conducting passageways perform all of the following except:
warm incoming air
Which one of the following terms does not apply to the nose:
nasopharynx
What is the role of mucus in the nasal cavity:
trap incoming bacteria and other foreign debris
The nasal cavity is separated from the oral cavity by:
both the hard and soft palate
Which one of the following bones does NOT contain paranasal sinuses:
mandible
Which one of the following is NOT a function of the paranasal sinuses:
they are olfactory receptors for smell
Tonsils that lie at the base of the tongue are called:
lingual tonsils
Following the removal of the larynx, a person would be unable to:
speak
The opening between the vocal cords is called the:
glottis
The flap of elastic cartilage that protects food from entering the larynx when swallowing is the :
epiglottis
When oxygen enters the respiratory system, what is the next structure to which it travels immediately upon leaving the trachea:
main (primary) bronchi
The walls of the alveoli are composed largely of:
simple squamous epithelium
Exchange of both oxygen and carbon dioxide through the respiratory membrane occurs by:
simple diffusion
Air moving in and out of the lungs is called:
pulmonary ventilation
The gas exchange that occurs between blood and tissue cells at systemic capillaries is called:
internal respiration
Most carbon dioxide is transported within blood plasma as:
bicarbonate ion
Oxygen binds with hemoglobin in the blood to form:
oxyhemoglobin
The most important chemical stimuli leading to increased rate and depth of breathing is:
increased carbon dioxide in the blood
The molecule that prevents lung collapse by lowering the surface tension of the water film lining each alveolar sac is called:
surfactant