Mastoid Process
What is the Mastoid Process and Function The mastoid part of the temporal bone houses the mastoid process. Mastoid process is the bony prominence easily felt behind the earlobe. It is one of the key features of the lateral cranium....
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Lingual Tonsils
Definition and Function Lingual tonsils are a group of lymphoid nodules (30-100 follicles) located at the posterior third of the tongue. Their appearance is described as exophytic mucosal small masses with crypts and folds. This creates the reticular pattern at...
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Patella Alta
Patella Alta : Definition Patella alta or high-riding patella is an anatomical variation and bone malalignment of the patella (kneecap) in relation to the surrounding bones. The patella is structurally placed higher in the femoral trochlea than it should be....
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Xiphoid Process
Xiphoid Process and Pain Definition Other names for the xiphoid process are processus xiphoideus, ensiform or xiphoid appendix. It rests at the 10th thoracic vertebra. It is the tiniest and lowest part of the sternum. Unlike the other two parts...
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Basal Ganglia
What is Basal Ganglia? The basal ganglia or basal nuclei are group of subcortical nuclei located at the base of the forebrain. They are significantly united with the cerebral cortex, thalamus, and brainstem. The basal ganglia play a major role...
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Epiglottis
Epiglottis : Definition and Function “Epi” means above and “glottis” pertains to the tongue. From these terms, we can derive its definition and location. Epiglottis is a flap of tissue found at the most superior part of the larynx. It...
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Thecal Sac
What is a Thecal Sac : Definition and Structure The thecal sac is a covering of the spinal canal that is filled with cerebrospinal fluid (CSF). It houses the spinal cord and nerve roots. It is made up of outer arachnoid membrane...
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Iliac Crest
Definition and Function The iliac crest is the margin of the ileum. It is a curved, broad structure made to protect the insides of the pelvic region. It serves as an attachment of muscles, aponeurosis, and fascia of the nearby...
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Vagus Nerve
What is the Vagus Nerve (CN X) ? The Latin “vag” means “vagrant” or “wandering.” Knowing its distribution throughout the body, it is fit to call the vagus (pronunciation: VAY-gus) nerve as such [1, 2]. Unlike the other cranial nerves,...
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