What is the functional unit of a skeletal muscle called?
A) a sarcomere
B) a myofilament
C) a myofibril
D) the sarcoplasmic reticulum
A) a sarcomere
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If you observed a higher-than-normal number of plasma cells in a sample of lymph, would you expect antibody levels in the blood to be higher or lower than normal?
A) Plasma cells produce antibodies so you would expect antibody levels would be higher than normal. B) Plasma cells do not produce antibodies so you would expect antibody levels would be higher than normal. C) Plasma cells produce antibodies so you would expect antibody levels would be lower than normal. D) Plasma cells do not produce antibodies so you would expect antibody levels would be lower than normal.
Z lines
a. are formed by the T tubules. b. extend down the middle of the I band. c. are formed by the cross bridges. d. are the thin filaments. e. extend down the middle of the sarcomere.
Which of the following formulas will allow you to calculate the net filtration pressure (FP)? (Hint: GHP = glomerular hydrostatic pressure, BCOP = blood colloidal osmotic pressure, CsHP = capsular hydrostatic pressure.)
A) FP = GHP + CsHP - BCOP B) FP = GHP - (CsHP + BCOP) C) FP = CsHP + GHP - BCOP D) FP = BCOP - GHP + CsHP E) FP = BCOP + (GHP - CsHP)
In these views of the trachea, what structure does number 1 indicate?
A. Trachealis muscle B. Thyroid cartilage C. Cricoid cartilage D. Anular ligament E. Tracheal cartilage