Which is true when your sympathetic nervous system is more active?

a. The SA node depolarizes more rapidly.
b. The myocardium repolarizes more frequently during one minute.
c. More Ca2+ becomes available and causes more forceful heart contractions.
d. Norepinephrine is stimulating the heart.
e. All of the above are true.


E

Anatomy & Physiology

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At the knee, a bone called the ____________ is embedded within the tendon of the quadriceps femoris muscle

Fill in the blank with correct word.

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Match the structure with its function: Microtubules of the cytoskeleton.

A)Determine the overall shape of the cell as well as distribution of cellular organelles B)Lipid synthesis C)Intracellular digestion D)Protein synthesis E)Organize the spindle during mitosis

Anatomy & Physiology

What cardiac arrhythmia will have no QRS complex as a symptom?

A. atrial fibrillation B. ventricular fibrillation C. bradycardia D. premature ventricular contractions

Anatomy & Physiology

Apoptosis begins with a cell receiving a signal to die.

Answer the following statement true (T) or false (F)

Anatomy & Physiology