BIO 142: Test
Which of the following is not a function of the small intestine?
All are correct (Chemical dig, mechanical dig, absorption)
Functions of the liver include
All of these choices are correct.
During the intestinal phase:
An increase in chyme in the duodenum inhibits gastric juice secretion and movement of chyme into the duodenum.
Peristalsis
Are waves of contractions that move substances.
The 22 pairs of non-sex determining chromosomes are:
Autosomes
Pancreatic juice contains water, enzymes and:
Bicarbonate
Which of the following statements concerning carbohydrates is not true?
Carbohydrates have to be absorbed along with dietary fat
Identify the structure indicated by 96 in the image.
Cervix
The enteric nervous system
Coordinates peristalsis and regulates local reflexes
Two large columns of erectile tissue of the penis are
Corpus cavernosum
Which is not a function of the digestive system?
Digestion, Ingestion, Elimination, Secretion, These are all functions of the digestive system
The layer lines the uterus is the
Endometrium
Where are spermatozoa stored until they are fully mature?
Epididymis
Which two anterior pituitary hormones stimulate spermatogenesis and androgen production?
FSH and LH
Only females produce FSH and LH.
False
Sperm and semen is the same thing.
False
Sperm are capable of motility within the seminiferous tubules.
False
Sympathetic innervation is responsible for erection; parasympathetic innervation is responsible for ejaculation.
False (opposite)
Which hormone stimulates primordial follicles to mature?
Follicle stimulating hormone
What is the correct order for the phases of the ovarian cycle, beginning with day 1?
Follicular, ovulation, luteal
The liver has how many lobes?
Four
The hepatic portal vein transports blood directly from the [blank] to the [blank].
G.I. tract, liver
Which of the following would stimulate gastric secretions?
Gastrin
Teniae coli are thin bundles of smooth muscle that bunch up the large intestine into sacs called:
Haustra
Which valve separates the small from the large intestine?
Ileocecal
Semen
Includes secretions from the seminal vesicles, prostate, and bulbourethral glands. Is HCO3- rich to neutralize the acidic vagina Contains nutrients to nourish sperm
Which hormone inhibits FSH secretion in males?
Inhibin
Which of the following is not an upper G.I. tract organ?
Jejunum
Ovulation is induced with a peak in [blank] secretion.
LH
Secretions that are added as food moves through the GI tract assist in
Liquefying and digesting the food
Where are hepatocytes located?
Liver
Sperm will only develop properly at:
Lower than body temperature
What is the correct order for the phases of the uterine cycle, beginning with day 1?
Menstrual - proliferative - secretory
A double-layer of peritoneum that supports G.I. organs is called
Mesentary
Which layer of the digestive tract is in direct contact with the food consumed?
Mucosa
The thick, muscular, middle tunic of the uterine wall is the:
Myometrium
A polar body is
None of the above
The cephalic phase of digestion occurs:
None of the above
Identify the structure indicated by 98 in the image.
Ovary
What accessory digestive organ(s) add secretions to the duodenum?
Pancreas
Which of the following structures has both endocrine and exocrine tissue?
Pancreas
Which organ is an accessory organ?
Pancreas
Which organ produces enzymes that digest all four macromolecules?
Pancreas
Of the five types of secretory cells in the gastric glands, which type secretes HCl?
Parietal
The clitoris is homologous to the
Penis
The diamond-shaped area between the thighs is the:
Perineum
Which method of motility just propels ingested material along the G.I tract (as occurs in the esophagus)?
Peristalsis
Which of the following is a true statement regarding polar bodies?
Polar bodies are a mechanism used during oogenesis to remove unwanted DNA from the oocyte.
What is the only necessary life function of the stomach
Production of intrinsic factor
Which hormone stimulates uterine lining growth during the secretory phase?
Progesterone
The anterior pituitary hormone that is crucial for milk production is:
Prolactin
Identify the structure indicated by 100 in the image.
Prostate
Pepsin digests
Proteins
Which phase (or period of a phase) of male sexual response is not present in the female?
Refractory
In the presence of acidic chyme in the duodenum, the duodenum will secrete ______ which will stimulate the _________ to produce secretions high in __________.
Secretin; pancreas and liver; bicarbonate
The back-and-forward motion of the small intestine that mixes chyme with secretions is called:
Segmentation
Which gland secretes a fluid containing fructose and an alkaline (basic) fluid?
Seminal vesicles
The lining of the gastrointestinal tract that allows for absorption and secretion is:
Simple columnar epithelium
The stomach functions to
Slow the movement of food through the GI tract.
Food is prevented from entering the nasal cavity during swallowing by the
Soft palate
Blood vessels, nerves, and smooth muscle attach to the testis through the:
Spermatic cord
Which is not true about spermatogenesis?
Spermatogenesis begins at birth and continues throughout a man's life
Which of the following organs is part of the digestive tract or alimentary canal?
Stomach
Why doesn't the acid in the stomach damage the walls of the stomach?
The stomach wall is protected by large amounts of mucus.
Identify the structure indicated by 94 in the image.
Uterus
Identify the structure indicated by 95 in the image.
Vagina
The most primitive type of ovarian follicle is:
a primordial follicle
The single diploid cell formed at fertilization is called
a zygote
The function of intrinsic factor is to
absorption of vitamin B12 for erythrocyte production
Proteins are made out of:
amino acids
Identify the structure indicated by 97 in the image.
ampulla of the uterine tube
The normal site of fertilization is the:
ampulla of the uterine tube
The four segments of the colon are (in order):
ascending, transverse, descending, sigmoid
The order through which sperm travels through the female reproductive tract is: a: body of the uterus b: vagina c: cervix d: uterine tube
b, c, a, d
An erection of the penis is caused by:
blood filling the erectile bodies and compressing the veins
Given the following structures of the male reproductive tract, what is the order in which sperm passes through these structures from the testes to the penis? a: epididymis b: urethra c: efferent ductile d: ejaculatory duct e: ductus deferens
c, a, e, d, b
Inability of the pyloric sphincter to open would prevent
chyme from entering the small intestine.
What structure forms from the remnants of the follicle following ovulation?
corpus luteum
Identify the structure indicated by 99 in the image.
ductus deferens
The segments of the small intestine are (in order):
duodenum, jejunum, ileum
The acrosome cap contains:
enzymes to allow penetration into the oocyte
Which hypothalamic hormone initiates puberty?
gonadotropin-releasing hormone (GnRH)
The primary reproductive organs are called [blank] and sex cells are called [blank].
gonads, gametes
Which of the following is not part or a portal triad
hepatopancreatic sinusoids
The villi, microvilli and circular folds (plicae circularis) function to
increase surface area for absorption.
Which cells produce most of the testosterone released in males?
interstitial cells
What is a major function of stomach acid (hydrochloric acid)?
kill most microorganisms
The female external genitalia that are homologous to the male scrotum is the:
labia majora
The gallbladder empties into the:
none of the above (Duodenum)
Insulin is released from the
none of the above (Pancreas)
The corpus luteum secretes:
progesterone and estrogen
Which of the male accessory glands encircles the urethra and produces a milky fluid rich in citric acid, antibiotics to combat urinary tract infections, and PSA?
prostate gland
The function of the dartos and cremaster muscles is to:
regulate the temperature of the testes
Reflux of gastric contents into the esophagus occurs because of
relaxation of the cardiac sphincter.
After forming in the seminiferous tubules, immature sperm are transported to the [blank], a mesh of channels in the testis.
rete testis
Sperm are produced in the:
seminiferous tubules
Which cells nourish developing sperm cells, produce inhibin, and form the blood-testis barrier?
sustenacular cells
The secretory phase of the uterine cycle coincides with:
the luteal phase of the ovarian cycle
About how many ovarian follicles are present at birth?
1.5 million
A human diploid cell contains:
23 pairs of chromosomes