What Does Sulcus Mean In Anatomy?

What does sulcus mean?

: furrow, groove especially: a shallow furrow on the surface of the brain separating adjacent convolutions.

What does Sulcal mean in medicine?

sulci (sŭl’kŭs, -sī) 1. [TA] Groove or depression in oral cavity or on tooth surface. 2. [TA] One of the grooves or furrows on surface of brain, bounding several convolutions or gyri; a fissure.

What is difference between sulcus and groove?

is that groove is a long, narrow channel or depression; eg, such a slot cut into a hard material to provide a location for an engineering component, a tyre groove, or a geological channel or depression while sulcus is (anatomy) a furrow or groove in an organ or a tissue.

Where is the sulcus in the brain?

also called the central fissure, the central sulcus is a prominent sulcus that runs down the middle of the lateral surface of the brain, separating the frontal lobe from the parietal lobe.

What does a sulcus do?

Key Takeaways: Brain Gyri and Sulci Gyri (singular: gyrus) are the folds or bumps in the brain and sulci (singular: sulcus ) are the indentations or grooves. Folding of the cerebral cortex creates gyri and sulci which separate brain regions and increase the brain’s surface area and cognitive ability.

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How deep is a healthy sulcus?

A healthy depth of the gingival sulcus is up to 3 mm or less. This depth allows patients to thorough clean the area with a toothbrush or additional oral hygiene products.

What does synapse mean in medical terms?

Synapse, also called neuronal junction, the site of transmission of electric nerve impulses between two nerve cells (neurons) or between a neuron and a gland or muscle cell (effector). A synaptic connection between a neuron and a muscle cell is called a neuromuscular junction.

What is a gyri in anatomy?

Gyrus: A convolution on the surface of a cerebral hemisphere caused by the infolding of the cerebral cortex. The gyri are bounded by crevices in the cortex called sulci.

What is oblongata?

: the part of the vertebrate brain that is continuous posteriorly with the spinal cord and that contains the centers controlling involuntary vital functions — see brain illustration.

Is a sulcus a depression?

In neuroanatomy, a sulcus (Latin: “furrow”, pl. sulci ) is a depression or groove in the cerebral cortex. It surrounds a gyrus (pl. gyri), creating the characteristic folded appearance of the brain in humans and other mammals.

How many sulcus are in the brain?

The brain can be divided down the middle lengthwise into two halves called the cerebral hemispheres. Each cerebral hemisphere is divided into four lobes by sulci and gyri.

What is groove in human body?

Groove – A furrow in the bone surface that runs along the length of a vessel or nerve, providing space to avoid compression by adjacent muscle or external forces. Examples include a radial groove and the groove for the transverse sinus. Head – A rounded, prominent extension of bone that forms part of a joint.

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What is the main function of the central sulcus?

The Rolandic sulcus, also called Rolando or the central sulcus, is a very important sulcus because it delimits the boundary between motor and the sensory cortices, as well as the boundary between the frontal and parietal lobes.

Is Wernicke’s area?

Wernicke area, region of the brain that contains motor neurons involved in the comprehension of speech. This area was first described in 1874 by German neurologist Carl Wernicke. The Wernicke area is located in the posterior third of the upper temporal convolution of the left hemisphere of the brain.

Why is the central sulcus important?

The central sulcus is one of the most important landmarks in the human brain for clinicians and neuroscientists because it precisely divides the somatic sensory cortex of the parietal lobe from the motor cortex of the frontal lobe.

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