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Mekhanik [1.2K]
3 years ago
12

Where/what is the arrector pili muscle? Is it under voluntary control?

Medicine
1 answer:
Leni [432]3 years ago
7 0

Answer:

Pili or hair erector muscle are a group of small muscles that are inserted into the hair follicle in its middle section, and when it contracts, it tenses the hair and erects it. It is innervated by the sympathetic nervous system, the contraction of the muscle is involuntary.

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What is anthropology?<br>what is benefit of learning anthropology?<br>​
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Answer:

Anthropology is the study of what makes people human. Completing a degree in anthropology will allow you to investigate the complexities of human beings. Anthropologists look into different people's lifestyles, how the human species has evolved and how humanity's past has impacted on the present

Explanation:

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4 0
2 years ago
Difference between arthritis and rheumatoid arthritis
OLga [1]

Answer:

The main difference between osteoarthritis and rheumatoid arthritis is the cause behind the joint symptoms. Osteoarthritis is caused by mechanical wear and tear on joints. Rheumatoid arthritis is an autoimmune disease in which the body's own immune system attacks the body's joints.

Explanation:

8 0
3 years ago
Damage to the corticospinal tract in the midbrain on one side produces a loss of voluntary control of movement on the opposite s
miv72 [106K]

Answer: True

Explanation:

The corticospinal tract can be defined as the white matter motor pathway that starts with the cerebral cortex and terminates at the lower motor neuron of the spinal cord. This controls the movement of the trunk and limbs.

If the corticospinal tract is affected at any level above the medulla the voluntary control over the movements will be affected on the contra-lateral side of the body.

6 0
3 years ago
What makes viruses different from most other infectious agents?
DanielleElmas [232]

Answer:

All viruses have is a protein coat and a core of genetic material, either RNA or DNA. Unlike bacteria, viruses can't survive without a host. They can only reproduce by attaching themselves to cells. In most cases, they reprogram the cells to make new viruses until the cells burst and die.

Hope, this helps

4 0
3 years ago
During the formation phase, the osteoblasts are?
kkurt [141]

Answer:

Phases of bone remodeling cycle

There are five phases in the bone remodeling process: ACTIVATION, RESORPTION, REVERSAL, FORMATION, and QUIESCENCE. The total process takes about 4 to 8 months, and occurs continually throughout our lives.

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3 years ago
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