Figure 24-2 The Wall of the Small Intestine
What is the layer labeled “4”?
A) mucosa
B) submucusa
C) muscularis externa
D) muscularis mucosae
E) serosa
Sensory neurons that are always active are called ________ receptors.
A) tonic
B) pasich
C) noci
D) isometric
E) isotonic
Where in the embryo does mesoderm first appear?
A) between the cell layers of the inner cell mass
B) within the blastocoele
C) in the chorionic villi
D) above the epiblast
E) around the trophoblast
Milly has just received a kidney transplant and is taking cyclosporin A. What does this
medication do?
A) prevents inflammation from destroying the transplanted kidney
B) depresses hemopoiesis in the red bone marrow
C) decreases chemotaxis of macrophages to the transplanted kidney
D) weakens antibodies in the blood
E) suppresses helper T cells, thus preventing rejection
The ligament that encloses the ________ attaches to the tibial tuberosity.
A) head of the femur
B) greater trochanter
C) medial malleolus
D) lesser trochanter
E) patella
When one hormone is needed for a second hormone to produce an effect, it is called
A) a reflex.
B) a causatum.
C) an aftereffect.
D) permissive.
E) a radical.
Which type of connective tissue is found in the trachea and between the ribs and
sternum?
A) areolar connective tissue
B) hyaline cartilage
C) elastic cartilage
D) fibrous cartilage
E) dense regular connective tissue
Which of the following hormones increases and prolongs effects of the sympathetic
nervous system?
A) cortisol
B) parathyroid hormone
C) insulin
D) growth hormone
E) acetylcholine
In a ________ muscle, the muscle fibers and fascicles lie in a slanted or oblique
position to the tendon.
A) parallel
B) circular
C) pennate
D) convergent
E) divergent
A point mutation involves a change in
A) a single nucleotide.
B) the starter sequence.
C) an entire codon.
D) the promotor segment.
E) the ribosomal subunit.
The epithelium that lines the body cavities is known as
A) perithelium.
B) myothelium.
C) intrathelium.
D) endothelium.
E) mesothelium.
A single contraction-relaxation cycle in a muscle fiber produces a(n)
A) cramp.
B) twitch.
C) tetanic contraction.
D) action potential.
E) motor unit.
The epithelium lining the oropharynx is
A) simple squamous.
B) simple cuboidal.
C) simple columnar.
D) stratified squamous.
E) pseudostratified squamous.
Where the eyelids join at the medial or lateral edge is called the
A) nasolacrimal duct.
B) palpebral fissure.
C) lacrimal caruncle.
D) optic margin.
E) canthus.
The long strap-like muscle on the anterior thigh is the ________ muscle.
A) gracilis
B) rectus femoris
C) iliotibial tract
D) adductor longus
E) sartorius
In what order would excitation move through the conducting system of the heart?
A) 4, 3, 2, 5, 1
B) 3, 5, 4, 2, 1
C) 1, 4, 3, 2, 5
D) 4, 2, 3, 5, 1
E) 3, 2, 4, 5, 1