The lateral view of the brain shows the three major parts of the brain, cerebrum, cerebellum and brainstem. Observed from the lateral aspect, there are many anatomical landmarks on these structures that carry great functional importance.

Also, what is the most lateral lobe of the brain?

The most superior lobe of the brain. The most lateral lobe of the brain. Dural septum that lies between the right and left hemispheres in the longitudinal fissure. The dural septum that lies between the cerebrum and cerebellum.

Also, where is the cortex of the brain? The primary auditory cortex is located on the upper surface of the temporal lobe at the lower edge of the Sylvian furrow and corresponds to Heschl's transverse gyrus. It receives sounds from both ears. The primary olfactory cortex is located in the lower posterior lobe of the frontal lobe and insula.

Regarding this, what is the function of the Sylvian fissure?

Fissures and gyri are folds in neural tissue that help create a larger surface area for the brain. The Sylvian fissure separates the frontal and parietal lobes from the temporal lobe.

What are the 4 lobes of the brain and their function?

Traditionally, each of the hemispheres has been divided into four lobes: frontal, parietal, temporal and occipital. Although we now know that most brain functions rely on many different regions across the entire brain working in conjunction, it is still true that each lobe carries out the bulk of certain functions.

Which lobe is responsible for memory?

The hippocampus is a structure in the brain that has been associated with various memory functions. It is part of the limbic system, and lies next to the medial temporal lobe.

Which lobe is responsible for speech?

frontal lobes

What lobe is the cerebellum in?

The cerebellum (“little brain”) is a structure that is located at the back of the brain, underlying the occipital and temporal lobes of the cerebral cortex (Figure 5.1). Although the cerebellum accounts for approximately 10% of the brain's volume, it contains over 50% of the total number of neurons in the brain.

What part of the brain controls personality?

Frontal lobe. The largest section of the brain located in the front of the head, the frontal lobe is involved in personality characteristics and movement.

What are the 5 lobes of the cerebrum?

Each cerebral hemisphere is divided into five lobes, four of which have the same name as the bone over them: the frontal lobe, the parietal lobe, the occipital lobe, and the temporal lobe. A fifth lobe, the insula or Island of Reil, lies deep within the lateral sulcus.

What is the left parietal lobe responsible for?

This lobe is also important for pain and touch interpretation. Moreover, the parietal lobe is significant for interpreting words, as well as language understanding and processing (1). It helps interpret and realize temperature, vision, sensory, hearing, memory, and motor center signals, as well as visual perception.

What is the frontal lobe responsible for?

The frontal lobe is the part of the brain that controls important cognitive skills in humans, such as emotional expression, problem solving, memory, language, judgment, and sexual behaviors. It is, in essence, the “control panel” of our personality and our ability to communicate.

How is the brain divided?

The human brain is divided into two hemispheres, the left and right, connected by a bundle of nerve fibers called the corpus callosum. The hemispheres are strongly, though not entirely, symmetrical. The left brain controls all the muscles on the right-hand side of the body and the right brain controls the left side.

What is the difference between sulcus and fissure?

The sulci and fissures are both grooves in the cortex, but they are differentiated by size. A sulcus is a shallower groove that surrounds a gyrus. A fissure is a large furrow that divides the brain into lobes and also into the two hemispheres as the longitudinal fissure.

What are Sylvian fissures?

The Sylvian fissure, also known as the lateral sulcus, separates the frontal and parietal lobes superiorly from the temporal lobe inferiorly. The insular cortex is located immediately deep to the Sylvian fissure.

What is another name for the Precentral gyrus and what does it do?

Definition. The precentral gyrus (PCG), also known as the motor strip or primary motor cortex, is the part of the brain's neocortex responsible for executing voluntary movements.

Where is the Precentral gyrus located?

The precentral gyrus is a prominent gyrus on the surface of the posterior frontal lobe of the brain. It is the site of the primary motor cortex that in humans is cytoarchitecturally defined as Brodmann area 4.

What is the function of the sulcus?

The folding created by the sulci and gyri increases the surface area of the cortex, meaning a greater amount of cerebral cortex can fit inside the volume of the skull. So the function of the sulci is to increase the amount of cortical neurons and thereby increase 'processing power'.

Where is the Rolandic fissure?

cen·tral sul·cus. A double S-shaped fissure extending obliquely upward and backward on the lateral surface of each cerebral hemisphere at the boundary between frontal and parietal lobes.

Which artery runs through the lateral sulcus of the cerebrum?

Anteriorly the fissure courses medially to form the 'stem' of the lateral fissure, also known as the Sylvian cistern, into which passes the middle cerebral artery and its major branches.

What is the function of the Precentral gyrus?

Structure and Function The precentral gyrus is the anatomical location of the primary motor cortex, which is responsible for controlling voluntary motor movement on the body's contralateral side. The primary motor cortex is topographically organized and creates a somatotropic map.

What is fissure in brain?

In anatomy, a fissure (Latin fissura, plural fissurae) is a groove, natural division, deep furrow, elongated cleft, or tear in various parts of the body also generally called a sulcus, or in the brain a sulcus.

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