Discuss the Role of the Xiongnu in the History of China

question 85

Essay

Discuss the role of the Xiongnu in the history of China during the Han.

Learn about the innervation of eye muscles and their functions in reflexes.

Identify and explain visual phenomena and tests, including the blind spot and astigmatism.

Understand the physiological responses of the eye to changes in lighting conditions.

Know the structure and function of eye components involved in vision and refraction.

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Definitions:

Postcava

Another term for the inferior vena cava, the large vein that carries deoxygenated blood from the lower half of the body to the right atrium of the heart.

Precava

Often referred to as the superior vena cava, it is a large vein that carries deoxygenated blood from the upper body to the heart.

Internal Jugular Vein

A major vein that carries blood from the head, brain, face, and neck back towards the heart.

Axillary Vein

A large blood vessel that conveys blood from the lateral aspects of the thorax, armpit, and upper limb toward the heart.