Lymphocytes can develop into cells that secrete defense proteins against disease. These
cells are termed ________, while these proteins are called antibodies.
A) T cells
B) B cells
C) plasma cells
D) immunocytes
E) phagocytes
Pronation is defined as
A) a rolling of the distal epiphysis of the radius over the ulna.
B) a twisting of the ulna medially.
C) twisting the forearm so that the palms face anteriorly.
D) the shortening of the angle between the radius and the humerus.
E) movement of the mandible anteriorly, as seen when biting the upper lip.
Cytotoxic T cells can attack target cells with which of the following chemical weapons?
A) secrete strong acid
B) secrete organic solvent
C) secrete free radicals
D) secrete a cytokine that triggers apoptosis
E) secrete mutant proteins that get incorporated into the target’s DNA
Cytokines that make a cell and its neighbors resistant to virus infection are called
A) complement.
B) interferons.
C) interleukins.
D) immunoglobulins.
E) transferrins.
The circumferential folds that encircle the digestive tract are known as
A) muscularis externa.
B) circular folds.
C) rugae.
D) serosa.
E) adventitia.
Which of the following statements is true regarding cardiac muscle?
A) Its main source of ATP production is glycogen.
B) The actin and myosin myofilaments are not arranged in sarcomeres.
C) Cardiac muscle preferentially metabolizes anaerobically.
D) There are specialized gap junctions in cardiac muscle not found in skeletal or
smooth muscles.
E) Cardiac muscle goes into sustained contractions faster than skeletal muscle.
________ are responsible for identifying and digesting damaged or denatured proteins.
A) Peroxisomes
B) Proteasomes
C) Lysosomes
D) Endosomes
E) Nucleosomes
Amacrine and ________ cells facilitate or inhibit communication between
photoreceptors and ganglion cells.
A) bipolar
B) ganglion
C) nuclear
D) hair
E) horizontal
Identify the muscle labeled “15.”
Figure 11-1 Major Anterior Skeletal Muscles
A) sternocleidomastoid
B) platysma
C) sartorius
D) stylohyoid
E) risorius
The four prominent muscles on the anterior thigh comprise the ________ muscle group.
A) quadriceps femoris
B) hamstring
C) gluteal
D) rhomboid
E) adductor