What Does Raphe Mean In Anatomy?

What is a raphe in anatomy?

noun, plural ra·phae [rey-fee]. Anatomy. a seamlike union between two parts or halves of an organ or the like. Botany. (in certain ovules) a ridge connecting the hilum with the chalaza.

Where is raphe located?

The raphe nucleus is considered to be part of the reticular formation and is located in the brainstem. It is responsible for the release of serotonin to other parts of the brain.

What does raphe mean in Latin?

noun /ˈɹeɪfi/ + grammar. (anatomy, botany) A ridge or seam on an organ, bodily tissue, or other structure, especially at the join between two halves or sections.

What is Raphae in biology?

The body of ovule is attached to funiculus by a structure called Hilum. Sometimes there occurs fusion between the funiculus and the body of ovule which results in the formation of a ridge which is called the Raphe.

What is the line on your balls called?

1.2. There is a longitudinal line in the middle of the scrotum called the scrotal raphe. Left and right genital eminences fuse at the scrotal raphe which links forward to the penile raphe at the root of the penis and backward to the perineal raphe.

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What is the function of raphe?

The raphe nuclei (Greek: ῥαφή, “seam”) are a moderate-size cluster of nuclei found in the brain stem. They have 5-HT1 receptors which are coupled with Gi/Go-protein-inhibiting adenyl cyclase. They function as autoreceptors in the brain and decrease the release of serotonin.

What is Pterygomandibular raphe?

The pterygomandibular raphe, also known as the pterygomandibular ligament, is a fibrous band of the buccopharyngeal fascia extending from the hamulus of the medial pterygoid plate to the mylohyoid ridge of the mandible 1.

What is the oblongata?

The medulla oblongata or simply medulla is a long stem-like structure which makes up the lower part of the brainstem. It is anterior and partially inferior to the cerebellum. It is a cone-shaped neuronal mass responsible for autonomic (involuntary) functions, ranging from vomiting to sneezing.

What would happen when the raphe nuclei is stimulated?

RAPHE NUCLEI: A SEROTONIN ACTIVATOR Stimulation of the raphe nuclei leads to a widespread release of serotonin (5-hydroxytryptamine) throughout the forebrain (see Fig. 3.2).

What does Adnate mean?

: grown to a usually unlike part especially along a margin a calyx adnate to the ovary.

What are Interdigitations?

Interdigitations or digitations (Terminologia histologica: Junctiones intercellulares digitiformes) are cell membrane foldings between cells often encountered in epithelia. The membranes of adjacent cells mesh with finger-like protrusions and thus have a meander-like course.

What’s a raphe?

The term ” raphe ” refers to a line or ridge that separates two symmetrical parts of the body, and was used in the naming of the raphe nuclei because this collection of nuclei are clustered around the midline of the brainstem.

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What are the types of ovule?

Ans: There are categorically six types of ovules. These are orthotropous or anatropous ovules, anatropous ovule, hemi-anatropous ovule or hemitropous ovule, campylotropous ovule, amphitropous ovule, and circinotropous ovule.

What is a Agamospermy?

: apogamy specifically: apogamy in which sexual union is not completed and the embryo is produced from the innermost layer of the integument of the female gametophyte.

What is the difference between hilum and raphe?

The raphe is the ridge formed by union of funicle with the body of the ovule. The hilum is a structure through which the body of the ovule remains attached to the funicle.

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