This substance is released by the nervous system and excites muscle cells (resulting in muscle ...

Author Question: This substance is released by the nervous system and excites muscle cells (resulting in muscle ... (Read 75 times)

cookcarl

Hero Member
Posts: 539

on: Jul 3, 2018

This substance is released by the nervous system and excites muscle cells (resulting in muscle contraction).

A) actin
B) myosin
C) ATP
D) calcium
E) acetylcholine

Question 2

The specialized sites that are contacts between cardiac muscle cells are called what?

A) Cardiac cellular gaps B) Intercalated discs
C) Intercardiac synapses D) Cardiac potential sites

k2629

Sr. Member
Posts: 357

Reply #1 on: Jul 3, 2018

Answer to Question 1

E

Answer to Question 2

B

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