The Thoracic (Left Lymphatic) Duct Begins as a Dilation Called

question 68

Multiple Choice

The thoracic (left lymphatic) duct begins as a dilation called the _____.

• A) intestinal plexus
• B) hemiazygos trunk
• C) cisterna chyli
• D) thoracic ampulla

---

Definitions:

Brainstem

The lower extension of the brain, connecting the cerebrum with the spinal cord, and controlling vital functions such as breathing and heart rate.

Cranial Nerves

Twelve pairs of nerves that are connected directly to the brain or brainstem and are responsible for motor and sensory functions of the head and neck.

Hypoglossal Nerve

The twelfth cranial nerve, responsible for motor control of the tongue.

Oculomotor Nerve

The oculomotor nerve, which is the third cranial nerve, is tasked with overseeing the majority of movements in the eye, such as pupil constriction and keeping the eyelid raised.