Lesions in the cerebellar peduncle include various pathological conditions: infarction, various primary or secondary degeneration, demyelinatiing disease, toxic metabolic disease, trauma, and benign and malignant tumors. Their differential diagnoses are occasionally difficult.
What is a peduncle in the brain?
a large bundle of neurons that resembles a large stalk (the Latin pedunculus means “footstalk”) and stretches from the cerebrum to the pons. The cerebral peduncles contain important descending tracts like the corticospinal tract and corticobulbar tracts. …
What is a peduncle in anatomy?
A peduncle is an elongated stalk of tissue. In medicine, a mass such as a cyst or polyp is said to be pedunculated if it is supported by a peduncle.
What is a peduncle in medicine?
Medical Definition of peduncle 1 : a band of white matter joining different parts of the brain — see cerebellar peduncle, cerebral peduncle. 2 : a narrow stalk by which a tumor or polyp is attached.
What does middle cerebellar peduncle do?
The middle cerebellar peduncles (brachium pontis) are paired structures (left and right) that connect the cerebellum to the pons and are composed entirely of centripetal fibers, i.e. incoming fibers. The fibers arise from the pontine nucleus to the opposite hemisphere of the cerebellar cortex.
Where is the peduncle located?
midbrain
The cerebral peduncles are located on either side of the midbrain and are the frontmost part of the midbrain, and act as the connectors between the rest of the midbrain and the thalamic nuclei and thus the cerebrum.
What is the purpose of the peduncle?
In botany, a peduncle is a stalk supporting an inflorescence or a solitary flower, or, after fecundation, an infructescence or a solitary fruit. The peduncle sometimes has bracts (a type of cataphylls) at nodes.
What is a peduncle in a flower?
Peduncle: The stalk of a flower. Receptacle: The part of a flower stalk where the parts of the flower are attached. Sepal: The outer parts of the flower (often green and leaf-like) that enclose a developing bud.
What has a peduncle?
From Wikipedia, the free encyclopedia. Peduncle may refer to: Peduncle (botany), a stalk supporting an inflorescence, which is the part of the shoot of seed plants where flowers are formed. Peduncle (anatomy), a stem, through which a mass of tissue is attached to a body.
How do you identify a peduncle?
flower anatomy The peduncle is the stalk of a flower or an inflorescence. When a flower is borne singly, the internode between the receptacle and the bract (the last leaf, often modified and usually smaller than the other leaves) is the peduncle.
Is the middle cerebellar peduncle a tract?
The AICA runs laterally to irrigate the ventrolateral pons, essentially the caudal part of the middle cerebellar peduncle, which is its core distribution; the spinothalamic tract; the trigeminal, facial, vestibular, and cochlear nuclei; the roots of CN VII and VIII; and the ventral parts of the cerebellum, including …
What does peduncle mean in medical terms?
Medical Definition of peduncle. 1 : a band of white matter joining different parts of the brain — see cerebellar peduncle, cerebral peduncle. 2 : a narrow stalk by which a tumor or polyp is attached.
What is the difference between pedunculated and sessile?
Not to be confused with Pedicle (anatomy). For other uses, see Sessility (disambiguation). A peduncle is an elongated stalk of tissue. Sessility is the state of not having a peduncle; a sessile mass or structure lacks a stalk. In medicine, a mass such as a cyst or polyp is said to be pedunculated if it is supported by a peduncle.
What is the meaning of cerebral penduncle?
Cerebral penduncle. The cerebral peduncle is made of a mass of nerve fibers, and there is one peduncle on each side of the brain. The term ‘cerebral’ means it is related to the brain. A ‘peduncle’ is a stem-like connector. The cerebral peduncles are connected to the pons, which is a part of the frontal brain stem that looks like a swelling.
What is a sessile mass with no peduncle?
A peduncle is an elongated stalk of tissue. Sessility is the state of not having a peduncle; a sessile mass or structure lacks a stalk. In medicine, a mass such as a cyst or polyp is said to be pedunculated if it is supported by a peduncle.
