Brain and Neuroanatomy — Flashcards

Flashcard 131: The _____ of the internal capsule contains corticospinal, corticorubral, and thalamocortical fibres

Answer: posterior limb

Flashcard 132: The _____ sinus terminates by joining with the great cerebral vein of Galen to form the straight sinus

Answer: inferior sagittal

Flashcard 133: The _____-order neuron of the dorsal column-medial lemniscal tract ascends contra-laterally in the medial lemniscus (brainstem and above)

Answer: 2nd

Flashcard 134: The embryonic brain flexure located at the level of the _____ (midbrain) is the cephalic flexure.

Answer: mesencephalon

Extra: The three main embryonic brain flexures are: 1. **Cephalic flexure**: Occurs at the level of the **midbrain** (mesencephalon). It creates the angle between the brainstem and the forebrain. 2. **Pontine flexure**: Occurs in the **hindbrain** (rhombencephalon) as a dorsal bend. 3. **Cervical flexure**: Occurs at the junction of the **hindbrain and the spinal cord**.

Flashcard 135: Lesions to the somatosensory association cortex in the _____dominant hemisphere result in astereognosia, which is the inability to recognize objects by touch

Answer: non-

Flashcard 136: The _____ nucleus of the thalamus generally receives input from the hypothalamus and sends output to the prefrontal cortex.

Answer: dorsomedial

Flashcard 137: One component of the basal ganglia is the _____, which consists of the putamen and globus pallidus

Answer: lentiform nucleus

Flashcard 138: Layers _____ of the LGB receive the projections of the axons from the temporal retina of the ipsilateral eye (uncrossed fibres)

Answer: 2, 3 and 5

Flashcard 139: Layers of the cerebellum: Granular layer: _____ cells send inhibitory output to the granule cells

Answer: Golgi

Flashcard 140: The facial nerve exits the facial nucleus and loops around the _____ nucleus, forming the internal genu of the facial nerve

Answer: abducens