Multiple Choice
Skeletal muscle maintains heat in the body by doing which of the following?
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4. Tissues & Histology
Introduction to Muscle Tissue
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Which muscle cell structure stores calcium ions that are used to trigger contraction?
A
Golgi apparatus
B
Nucleus
C
Sarcoplasmic reticulum
D
Mitochondria
Verified step by step guidance1
Identify the role of calcium ions in muscle contraction. Calcium ions are crucial for initiating the contraction process in muscle cells.
Understand the function of the sarcoplasmic reticulum. It is a specialized type of smooth endoplasmic reticulum found in muscle cells, responsible for storing and releasing calcium ions.
Compare the functions of the given cell structures: Golgi apparatus, nucleus, mitochondria, and sarcoplasmic reticulum.
Recognize that the Golgi apparatus is involved in modifying, sorting, and packaging proteins, not storing calcium ions.
Acknowledge that the sarcoplasmic reticulum is the correct structure that stores calcium ions, which are essential for muscle contraction.
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