Neuroanatomy — Flashcards

Flashcard 141: Endolymphatic duct is a continuation of _____

Answer: utriculo-saccular duct

Flashcard 142: Endolymph is absorbed via the _____

Answer: endolymphatic sac

Flashcard 143: Reflex cough due to stimulation of _____ which supplies part of the EAC may sometimes occur during examination of the ear.

Answer: auricular branch of vagus (nerve)

Flashcard 144: Which nucleus of the Vth nerve supplies the muscles of mastication, the tensor tympani, the tensor veli palatini, the mylohyoid, and the anterior belly of the digastric muscle?

Answer: Motor nucleus

Flashcard 145: In the visual pathway, the **third-order neurons** are located in the _____?

Answer: Lateral geniculate body (LGB)

Extra: Visual pathway neuron sequence: 1. **Bipolar cells** (1st order) 2. **Ganglion cells** (2nd order) — Axons form the optic nerve/tract. 3. **Lateral geniculate body** (3rd order) — Axons form the optic radiations. 4. **Primary visual cortex** (4th order) — Area 17 in the calcarine sulcus. Note: While some older texts count photoreceptors as the first-order, modern medical standards (Snell, Guyton) designate bipolar cells as the first-order neurons.

Flashcard 146: The efferent preganglionic sympathetic fibres to the ovary are derived from the _____

Answer: T10-T11

Flashcard 147: Intra_____ part is the longest part of the optic nerve.

Answer: orbital

Flashcard 148: Sympathetic supply to the nose comes from _____ segments of spinal cord

Answer: upper 2 thoracic

Flashcard 149: The cervical plexus is made up of the anterior rami of which spinal nerves?_____

Answer: C1-C4

Flashcard 150: K1, K4, and K6 receive _____lateral retinal inputs

Answer: contra