Which of the following is unique to cardiac musclecells?a. Only cardiac muscle contains a sarcoplasmicreticulum.b. Only cardiac muscle has gap junctions.c. Only cardiac muscle is capable ofautorhythmicityd. Only cardiac muscle has a high concentration ofmitochondria.

Draw a schematic diagram of a sarcomere contracting showing each of the 4 steps.

What does it mean when we say cardiac muscle contraction is a graded contraction?

This muscle type is described as interconnected, connecting as one. a. skeletal O b. visceral O c. smooth O d. cardiac

Why do the cardiac muscle cells demonstrate a UTORHYTHMICITY

burst of Calchu musc res an ldum Which of the following is true concerning the role of Calcium in the contraction of muscle- cells? 20. A. skeletal muscle cells require a burst of calcium from the sarcoplasmic reticulum. B. smooth muscle cells require a burst of calcium from the sarcoplasmic reticulum. C. cardiac muscle cells require a burst of calcium from the sarcoplasmic reticulum. D. All of the above are correct. to an ent. response to an ertraceil m-current

How do you distinguish between a skeltal muscle and a cardiac muscle?

The Terminal Cisternae are: A. The basic contractile unit in skeletal muscle OB. Equivalent to the cell membrane which covers the entire fiber. OC. A highly organized array of contractile units. OD. A specialized structure of the Sarcoplasmic reticulum which stores calcium. OE. None of the above.

Fast-twitch muscle fibers are also called type ________fibers and slow-twitch are called type _____________fibers.      A, B     I, II     II, I     B, A

Compare 2 types of Cell Muscle Pancreas Describe a heart muscle cell Describe a pancreas cell 1. Organelles difference 1. Organelles difference 2. Function of muscle 2. Function of muscle 3. Location in body 3. Location in body