Structure C is the
A) myofibril.
B) Z line.
C) sarcoplasmic reticulum.
D) T tubule.
E) myofilament.
C) sarcoplasmic reticulum.
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In smooth muscle, bundles of filaments attach to the plasma membrane at points referred to as __________
Fill in the blank with correct words.
Alex is participating in a 50 meter dash. Predict the most important chemical process his muscles will rely on during this race
A. aerobic respiration. B. anaerobic respiration. C. creatine phosphate breakdown. D. nuclear reactions. E. both anaerobic respiration and creatine phosphate breakdown.
This figure shows respiratory control centers in the brainstem. What does number 1 indicate?
A. Dorsal respiratory group B. Apneustic center C. Ventral respiratory group D. Pontine respiratory center
Which accessory gland secretes a thick, yellowish fluid that contains sugar and other carbohydrates to nourish sperm, and a protein that will help semen adhere to the vaginal walls?
A. Bulbourethral B. Seminal vesicle C. Glans penis D. Prostate