1) which of these has the highest h+ concentration?
a. lemon juice, ph = 2.3
b. red wine, ph = 3.2
c. tomato juice, ph = 4.7
d. saliva, ph = 6.6
e. household ammonia, ph = 10.8
2) the chordae tendinae of the av valves are anchored to the __________ of the
ventricles.
a. papillary muscles
b. pectinate muscles
c. trabeculae carnae
d. interventricular septum
e. interatrial septum
3) why are pregnant rh- women given an injection of rh immune globulin?
a. antibodies in the injection bind fetal rbc antigens so they cannot stimulate her
immune system to produce anti-d antibodies.
b. antibodies in the injection bind fetal rbc antigens so they cannot stimulate her
immune system to produce anti-a and anti-b antibodies.
c. antibodies in the injection bind fetal rbc antigens so they cannot stimulate her
immune system to produce anti-a antibodies.
d. antibodies in the injection bind fetal rbc antigens so they cannot stimulate her
immune system to produce anti-o antibodies.
e. antibodies in the injection bind fetal rbc antigens so they cannot stimulate her
immune system to produce anti-b antibodies.
4) a meniscus is a type of bursa seen in the space between the femur and tibia.
5) defecation is stimulated by __________.
a. the chemical composition of the feces
b. bacterial flora in the feces
c. water content of the feces
d. lipid content in the feces
e. stretching of the rectum
6) the small intestine is suspended from the abdominal wall by the ___________.
a. falciform ligament
b. mesentery
c. greater omentum
d. lesser omentum
e. esophageal hiatus
7) male infertility (sterility) refers to _________.
a. the inability to fertilize an egg
b. low sperm count
c. a lack of seminal fluid during ejaculation
d. low levels of testosterone
e. the inability to have an erection
8) when does oogenesis begin?
a. during embryonic development
b. at birth
c. during thelarche
d. during pubarche
e. during menarche
9) in one passage through a bed of systemic blood capillaries, the blood gives up about
what percentage of its oxygen?
a. 5% to 10%
b. 10% to 15%
c. 20% to 25%
d. 30% to 40%
e. 70% to 85%
10) the __________ valveregulates the flow of blood between the right ventricle and
the vessels leading to the lungs.
a. right atrioventricular
b. left atrioventricular
c. aortic
d. pulmonary
e. mitral
11) the sarcolemma of a resting muscle fiber is most permeable to __________.
a. calcium
b. potassium
c. sodium
d. lithium
e. magnesium
12) which of the following isthe healthiest ratio of triglycerides?
a. high hdl: low ldl
b. high ldl: low hdl
c. high ldl: low chylomicron
d. high sfa: low hdl
e. high chylomicron: low ldl
13) sperm cells get energy to power their movement from __________, which
iscontributed by the __________.
a. prostaglandins; prostate gland
b. sucrose; bulbourethral gland
c. fructose; seminal vesicles
d. seminogelin; prostate gland
e. semen; seminiferous gland
14) primary germ layers are formed during __________
a. implantation
b. cleavage
c. conception
d. organogenesis
e. gastrulation