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Athabasca University Bio 235 Midterm 1- Version A and Version B

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Athabasca University Bio 235 Midterm 1- Version A and Version B 1. How motion is produced in muscle -Movements of the whole body such as walking and running, and localized movements such as grasping a pencil, keyboarding, or nodding the head as a result of muscle contractions, rely on the integ...

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  • February 2, 2022
  • 19
  • 2022/2023
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By: Sherry11 • 2 year ago

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Athabasca University Bio 235 Midterm 1- Version A and version B


1. How motion is produced in muscle
-Movements of the whole body such as walking and running, and localized
movements such as grasping a pencil, keyboarding, or nodding the head as a
result of muscle contractions, rely on the integrated functioning of skeletal
muscles, bones, and joints.

2. Tongue diagram

,3. Diagram of center for regulation of blood pressure and heart rate




4. Steps of hormone regulation




5. Which cells produce glucagon?
-Produced by Alpha cells, found in the islets of Langerhans in the Pancreas.

6. Neuralgia responsible for providing myelin sheath in CNS
-The neuralgia responsible for providing myelin sheath in the CNS is Schwann cells.
Schwann cells are also involved in phagocytosis in the PNS.

, 7. Negative feedback
-Negative feedback systems reverse changes in a controlled condition.




8. Nail bed- where the cuticle is
Nail bed- the skin below the nail plate that extends from the lunula to the hyponychium.
The epidermis of the nail bed lacks a stratum granulosum.

Cuticle- a narrow band of epidermis that extends from and adheres to the margin (lateral
border) of the nail wall. It occupies the proximal border of the nail and consists of
stratum corneum.

9. Frontal plane
Frontal plane- divides the body into equal left and right sides.

10. Short bones
Short bones- somewhat cube-shaped and are nearly equal in length and width. They
consist of spongy bone tissue except at the surface, which has a thin layer of compact
bone tissue. Ex. Most carpal bones and most tarsal bones.

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