Why Can’t You Clench Your Fist Right After Waking Up?

Why Can’t You Clench Your Fist Right After Waking Up?

Assessment

Interactive Video

Physics, Science, Chemistry, Health Sciences, Biology

KG - University

Hard

Created by

Quizizz Content

FREE Resource

The video explores why making a fist is difficult immediately after waking up. It explains that this phenomenon is due to the body's reduced blood flow and electrolyte distribution during sleep. Electrolytes like potassium, calcium, and sodium are crucial for muscle contraction and relaxation. Upon waking, the body gradually resumes normal blood flow, which can delay muscle function. In emergencies, adrenaline can override this delay. Persistent morning hand weakness may indicate medical conditions like rheumatoid arthritis or Lambert Eaton syndrome.

Read more

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a possible reason for difficulty in making a fist right after waking up?

Lack of sleep

Muscle fatigue

Excessive exercise

A sign of a more serious condition

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which electrolytes are essential for muscle contraction?

Calcium, Potassium, Sodium

Chloride, Phosphate, Sulfate

Copper, Manganese, Selenium

Magnesium, Zinc, Iron

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to potassium during muscle relaxation?

It combines with calcium

It remains unchanged

It enters the muscle cells

It leaks out of the muscle cells

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the body prioritize blood flow during deep sleep?

Reduces blood flow to the muscles in the limbs

Increases blood flow to the limbs

Maintains constant blood flow throughout the body

Stops blood flow to the brain

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should you do if you suddenly experience morning hand weakness?

Increase your physical activity

Consult a doctor for a check-up

Ignore it as it is always normal

Drink more water