A fontanelle (or fontanel) (colloquially soft spot) is an anatomical feature on an infant’s skull comprising any of the soft membranous gaps between the incompletely formed cranial bones of a […]
List of articles in "Anatomical Structure" category - Page 428
Bile duct
A bile duct is any of a number of long tube-like structures that carry bile.Bile required for the digestion of food is secreted by the liver into passages that carry […]
Gallbladder
In vertebrates the gallbladder (cholecyst gall bladder or biliary vesicle) is a small organ where bile is stored before it is released into the small intestine. Humans can live without […]
Olfactory nerve
The olfactory nerve (Latin: Nervus olfactorius) known as the first cranial nerve or simply CNI carries the sensory information for the sense of smell. Derived from the embryonic nasal placode […]
Bone marrow
Bone marrow is the flexible tissue in the interior of bones. In humans red blood cells are produced by cores of bone marrow in the heads of long bones in […]
Platelet
Platelets are biconvex discs fragments of cytoplasm 2–3 µm in diameter found only in the blood of mammals. Platelets form by budding off from megakaryocytes in the bone marrow and […]
Pleural cavity
In human anatomy the pleural cavity is the potential space between the two pleurae (visceral and parietal) of the lungs. A pleura is a serous membrane which folds back onto […]
Thumb
The thumb is the first finger of the hand. When a person is standing in the medical anatomical position (where the palm is facing to the front) the thumb is […]
Sympathetic nervous system
The (ortho-) sympathetic nervous system (SNS) is one of three major parts of the autonomic nervous system (the others being the enteric and parasympathetic systems). Its general action is to […]
Parasympathetic nervous system
The parasympathetic nervous system (PSNS) is one of three main divisions of the autonomic nervous system (ANS) the other two being the sympathetic and enteric systems. The ANS is responsible […]