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What is isthmus in human body?

What is isthmus in human body? Medical Definition of isthmus

: a contracted anatomical part or passage connecting two larger structures or cavities: as. a : an embryonic constriction separating the midbrain from the hindbrain. b : the lower portion of the uterine corpus.

What do you mean by isthmus?

An isthmus is a narrow strip of land that connects two larger landmasses and separates two bodies of water.

Where is the isthmus in body?

isthmus of uterus the constricted part of the uterus between the cervix and the body of the uterus.

What is another word for isthmus?

In this page you can discover 11 synonyms, antonyms, idiomatic expressions, and related words for isthmus, like: land, neck of land, bosporus, land passage, land-bridge, portage, band, tagus, coastal plain, guadalquivir and bosphorus.

What is the isthmus in the brain?

Objective: The cerebral isthmus is the white matter area located between the periinsular sulcus and the lateral ventricle. Studies demonstrating the fiber tract and topographic anatomy of this entity are lacking in current neurosurgical literature.


How do you use isthmus in a sentence?


Isthmus sentence example

  1. It is served by the Panama railway, which crosses the Isthmus of Panama from ocean to ocean. …
  2. In the course of centuries this mole has been silted up and is now an isthmus half a mile wide. …
  3. In order to prevent the incursions of ‘.

Where is the isthmus in the body?

The thyroid gland is shaped like a butterfly with two wings or lobes on either side of the windpipe that are joined together by a bridge of tissue, called the isthmus, which crosses over the front of the windpipe.

What is a normal size Isthmus?

We found mean thickness of thyroid isthmus as 3.114 ± 0.9513 mm for male, 3.083 ± 1.056 mm for female and 3.097 ± 1.009 mm (range 1.0 to 6.8 mm) for total population.

What is the smallest Isthmus in the world?

The Isthmus of Panama is a narrow strip of land, 30 miles wide at its narrowest point, joining the North and South American Continents.

What is the function of the Isthmus?

Isthmus. The caudal end of the oviduct joined to the uterus. The Isthmus is thicker walled than the ampulla and smaller in diameter. Its folded mucosa forms a functional reservoir for sperm in the female tract.

What is the opposite of isthmus?

An isthmus is a narrow strip of land, with water on either side, that connects two bigger landmasses. … Separating two water bodies and joining two land bodies, an isthmus is the opposite of a strait.

What is a sentence for isthmus?

Isthmus Sentence Examples

It is served by the Panama railway, which crosses the Isthmus of Panama from ocean to ocean. In the course of centuries this mole has been silted up and is now an isthmus half a mile wide. In order to prevent the incursions of ‘.

What is the part of speech for isthmus?

British Dictionary definitions for isthmus

isthmus. / (ˈɪsməs) / noun plural -muses or -mi (-maɪ) a narrow strip of land connecting two relatively large land areas. anatomy.

What is the function of isthmus?

function. The isthmus is a small region, only about 2 cm (0.8 inch) long, that connects the ampulla and infundibulum to the uterus. The final region of the fallopian tube, known as the intramural, or uterine, part, is located in the top portion (fundus) of the uterus;…

What is the isthmus of cingulate gyrus?

BrainInfo. The term isthmus of the cingulate gyrus refers to one of three components of the cingulate gyrus in the human and the macaque. … In curving around the splenium of the corpus callosum it connects the posterior cingulate gyrus dorsally with the parahippocampal gyrus ventrally.

What is Subcallosal gyrus?

The subcallosal cingulate gyrus (SCG), including Brodmann area 25 and parts of 24 and 32, is the portion of the cingulum that lies ventral to the corpus callosum. It constitutes an important node in a network that includes cortical structures, the limbic system, thalamus, hypothalamus, and brainstem nuclei.

What is a antonym for isthmus?

There are no categorical antonyms for isthmus. The noun isthmus is defined as: 1. A narrow strip of land, bordered on both sides by water, and connecting two larger landmasses.

What is isthmus in one sentence?

1. a relatively narrow strip of land (with water on both sides) connecting two larger land areas 2. a cord-like tissue connecting two larger parts of an anatomical structure. 1 He walked on, crossed the isthmus, and passed the entrance to the docks. 2 Picked a catena from the summit to the isthmus on the east side.

Where is a isthmus located in the USA?

The Madison Isthmus is in Madison, Wisconsin. It connects Lake Mendota and Lake Monona. Seattle, Washington is located on an isthmus that is between the Puget Sound and Lake Washington. In Maui, Hawaii, Central Maui is an isthmus that connects two volcanic masses.

How do you use detain in a sentence?

Examples of detain in a Sentence

They were detained by the police for questioning. He claimed he had been illegally detained. Unexpected business had detained her.

What happens in the Isthmus?

The Isthmus is thicker walled than the ampulla and smaller in diameter. Its folded mucosa forms a functional reservoir for sperm in the female tract. Sperm in the female tract reach the isthmus of the oviduct and bind to the mucosal epithelial cells, forming a functional reservoir.

What is the Isthmus in the brain?

Objective: The cerebral isthmus is the white matter area located between the periinsular sulcus and the lateral ventricle. Studies demonstrating the fiber tract and topographic anatomy of this entity are lacking in current neurosurgical literature.

Can you feel the thyroid isthmus?

The thyroid is a butterfly-shaped gland that sits low on the front of the neck. Your thyroid lies below your Adam’s apple, along the front of the windpipe. The thyroid has two side lobes, connected by a bridge (isthmus) in the middle. When the thyroid is its normal size, you can’t feel it.

What is a normal thyroid level?

The normal range of TSH levels is 0.4 to 4.0 milli-international units per liter. If you’re already being treated for a thyroid disorder, the normal range is 0.5 to 3.0 milli-international units per liter. A value above the normal range usually indicates that the thyroid is underactive.

What is average size of thyroid gland?

Normal thyroid lobe dimensions change from birth into adulthood: the length (L or craniocaudal) diameter is 1.8 to 2.0 cm in newborns and 4.0 to 6.0 cm in adults, while the A-P dimension measures 0.8 to 0.9 cm in newborns and 1.3 to 1.8 cm in adults.

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