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The thoracic duct originates from an expanded chamber called the
A) thoracic sinus.
B) cisterna chyli.
C) thoracic trunk.
D) hilum.
E) thoracic ventricle.
Cross bridge detachment is caused by ________ binding to the myosin head.
A) ATP
B) calcium
C) magnesium
D) acetylcholine
E) acetylcholinesterase
Ovaries and testes receive a blood supply from the ________ arteries.
A) gonadal
B) reproductive
C) pelvic
D) pubic
E) internal iliac
Internal respiration refers to exchange of oxygen and carbon dioxide between the blood
and the
A) alveoli.
B) respiratory bronchioles.
C) alveoli and respiratory bronchioles.
D) tissues and interstitial fluid.
E) conducting portion of the respiratory system.
________ carry motor information to peripheral effectors.
A) Motor neurons
B) Efferent neurons
C) Multipolar neurons
D) Afferent neurons
E) Interneurons
The alpha-helix and beta sheet are examples of ________ protein structure.
A) primary
B) secondary
C) tertiary
D) quaternary
E) pentanary
The hip joint can also be referred to as the ________ joint.
A) coccygeal
B) coxal
C) condyloid
D) sacroiliac
E) ellipsoid
The site where fertilization normally occurs is in the
A) cervix.
B) fimbrae.
C) uterine wall near the fundus.
D) outer one-third of the uterine tube.
E) union of the vagina and uterus.
Identify the type of joint at label "1."
Figure 9-2 Bones of the Wrist and Hand
A) hinge
B) condylar
C) gliding
D) saddle
E) pivot
Which of the following is false concerning the process known as cotransport?
A) Only neutral compounds such as sugars are transported.
B) More than one molecule or ion is moved through the cell membrane at one time.
C) ATP is not required by the transport protein.
D) Molecules can be moved against a concentration gradient.
Compounds that contain carbon as the primary structural atom are called ________
molecules.
A) carbonic
B) organic
C) inorganic
D) catabolic
E) anabolic
The gradual modification of anatomical structures and physiologic characteristics from
fertilization to maturity is termed
A) gametogenesis.
B) ontogeny.
C) development.
D) transformation.
E) disablement.
Walking requires the contraction of the
A) external and internal obliques.
B) tibialis anterior and the gastrocnemius.
C) biceps femoris and biceps brachii.
D) peroneus.
E) latissimus dorsi and the sartorius
Jaundice is indicated by a(n) ________ skin coloration.
A) reddish
B) yellowish
C) orange
D) bluish
E) brown
Specialized lymphatic capillaries called lacteals are
A) located primarily in the large intestine.
B) necessary for the transport of dietary lipids.
C) part of the fenestrated capillary group.
D) more numerous than blood capillaries.
E) All of the answers are correct.
Transfer of mRNA from the nucleus to the cytosol occurs through
A) carrier proteins.
B) gap junctions.
C) nucleosides.
D) gap lines.
E) nuclear pores.
When you spin quickly, you may feel dizzy. Which component of the inner ear
generates the sensations that can lead to this feeling?
A) organ of Corti
B) maculae
C) otoliths
D) semicircular canal
E) ossicles
Jane has been taking the antibiotic chloramphenicol for a few weeks as treatment for a
serious bacterial infection. There is a possibility that a future side effect of long-term
antibiotic therapy could cause her to develop problems in blood cell counts. The result
is
A) autoimmune disease.
B) aplastic anemia.
C) drug resistance.
D) thrombocytopenia.
E) erythroblastosis.
Neurons that release norepinephrine as a neurotransmitter are called
A) cholinergic.
B) anergic.
C) adrenergic.
D) synergic.
E) noradrenergic.
