All of these structures can be identified in the ventricles except:
A. trabeculae carneae.
B. papillary muscles.
C. pectinate muscles.
D. chordae tendineae.
Ans: C. pectinate muscles.
You might also like to view...
If you block Ca2+ channels on an axon, which will not occur?
A. The repolarization phase of the action potential B. The exocytosis of neurotransmitter C. The graded potential D. The depolarization phase of the action potential E. All of these will not occur
Enzymes are necessary for digestion; ________ is produced to break down fats
A) Nuclease B) Lipase C) Maltase D) Carbohydrase
A group of cells was treated with a proteolytic (protein-digesting) enzyme. Which of the following processes would be least affected by this treatment?
A. use of carrier molecules in facilitated diffusion B. sodium-potassium exchange pump C. secondary active transport D. diffusion of lipid-soluble molecules through the plasma membrane E. diffusion of sodium through sodium membrane channels
Arrange the following structures in the order sperm would pass through them from the seminiferous tubules to the urethra
(1) ductus deferens (vas deferens) (2) efferent ductules (3) epididymis (4) ejaculatory duct (5) rete testis A. 5, 3, 2, 1, 4 B. 3, 2, 4, 1, 5 C. 3, 4, 2, 1, 5 D. 5, 2, 4, 3, 1 E. 5, 2, 3, 1, 4