What is the function of the sulcus in the brain?
What is the function of the sulcus in the brain?
A sulcus (plural: sulci) is another name for a groove in the cerebral cortex. Each gyrus is surrounded by sulci and together, the gyri and sulci help to increase the surface area of the cerebral cortex and form brain divisions.
What is a homunculus in the brain?
The word “homunculus” means little man in Latin. But in neuroanatomy, the cortical homunculus represents either the motor or the sensory distribution along the cerebral cortex of the brain. While the sensory homunculus is a topographic representation of the body parts along the postcentral gyrus of the parietal lobe.
What is Brodmann’s Area 17?
primary visual cortex
Visual System. The primary visual cortex (Brodmann area 17) is located in and on either side of the calcarine sulcus, on the medial surface of the occipital lobe. It functions primarily in discerning the intensity, shape, size, and location of objects in the visual field.
What is the superficial part of the brain?
cortex
The cortex is the most superficial layer of these brain parts, and make up the largest portion of the brain’s gray matter. The inferior view of the brain also shows some white matter, as well as some important structures like the olfactory bulb, tract and the optic chiasm.
What is found in the transverse fissure?
cerebral fissures parietal and occipital lobes; the transverse fissure, which divides the cerebrum from the cerebellum; and the longitudinal fissure, which divides the cerebrum into two hemispheres.
What is Brodmann’s Area 41?
Cerebral Cortex The primary auditory cortex (Fig. 6B; Brodmann area 41) is located along the upper bank of the superior temporal gyrus, within the lateral sulcus on two gyri known as Heschl’s gyri.
What are superficial layers?
[TA] in a stratified structure, the outermost or topmost of the strata; the stratum nearest the surface. See: superficial layer of deep cervical fascia, superficial layer of the levator palpebrae superioris, superficial layer of temporal fascia.
Which of the following structure is the most superficial?
Answer Skin The term superficial is a relative term that applies to the structure closest to the outside of the body. Since the skin lines the exterior of the body, it is the most superficial of the structures listed here.
