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6 Questions

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Biological Functions of Calcium

Created by

@WellBacklitOgre8953

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Questions and Answers

Which function of calcium is directly related to the cardiovascular system?

Regulates heart rhythm (correct)

Assists in normal blood clotting

Building strong bones and teeth

Helps regulate the passage of nutrients in and out of the cell walls

Which statement is NOT one of the biological functions of calcium?

Helps maintain proper nerve and muscle function

Enhances immune response (correct)

Eases insomnia

Acts as a second messenger for many hormones

What is the role of calcium in muscle contraction?

Inhibits the release of acetylcholine at the neuromuscular junction

Increases the release of potassium ions from muscle cells

Activates enzymes involved in muscle relaxation

Binds to troponin to allow actin-myosin interaction (correct)

Which range is considered normal for total blood calcium levels in mmol/L?

2.10 - 2.60 Signup and view all the answers

Calcium acts as a second messenger for many hormones. Which of the following hormones does NOT typically use calcium as a second messenger?

Insulin Signup and view all the answers

In which process does calcium NOT play a significant role?

Production of red blood cells Signup and view all the answers

Study Notes

Biological Functions of Calcium

Calcium is essential for building strong bones and teeth.
It regulates the passage of nutrients in and out of cell walls.
Calcium helps regulate heart rhythm.
It is necessary for proper nerve and muscle function.
Calcium acts as a second messenger for many hormones.
It eases insomnia.
Calcium assists in normal blood clotting.

Clinical Significance

The normal range of total blood calcium is 2.10-2.60 mmol/L or 8.5-10.5 mg/dl.
Calcium plays a crucial role in various bodily functions, including:
Bone Structure
- Calcium is vital for building strong bones.
Muscle Contraction
- Calcium is necessary for muscle contraction.
Cellular Metabolism
- Calcium plays a role in cellular metabolism.
Nerve Impulse Transmission
- Calcium is important for nerve impulse transmission.
Wound Healing
- Calcium is required for the healing of wounds.
Eases Insomnia
- Calcium helps alleviate insomnia.

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Description

This quiz covers the various biological functions of calcium in the human body, including its role in bone and teeth development, nerve and muscle function, and heart rhythm regulation.