A trilaminar embryo (or trilaminary blastoderm or trilaminar germ disk) is an early stage in the development of triploblastic organisms which include humans and many other animals. It is an […]
List of articles in "Anatomical Structure" category - Page 234
Lacrimal sac
The lacrimal sac or lachrymal sac is the upper dilated end of the nasolacrimal duct and is lodged in a deep groove formed by the lacrimal bone and frontal process […]
Lacrimal canaliculi
The lacrimal canaliculi also known as the lacrimal canals or lacrimal ducts are the small channels in each eyelid that commence at minute orifices termed puncta lacrimalia on the summits […]
Lacrimal apparatus
The lacrimal apparatus is the physiologic system containing the orbital structures for tear production and drainage.It consists of: The lacrimal gland which secretes the tears and its excretory ducts which […]
Lateral aperture
The lateral aperture is a paired structure in human anatomy. It is an opening in each lateral extremity of the lateral recess of the fourth ventricle of the human brain […]
Pelvic inlet
The pelvic inlet or superior aperture of the pelvis is a planar surface which defines the boundary between the pelvic cavity and the abdominal cavity (or according to some authors […]
Wing of ilium
The wing of ilium (or ala) is the large expanded portion which bounds the greater pelvis laterally. It presents for examination two surfaces—an external and an internal—a crest and two […]
Lower extremity of femur
The lower extremity of the femur (or distal extremity) is the lower end of the thigh bone in human and other animals closer to the knee. It is larger than […]
Body of femur
The body of the femur (or shaft) almost cylindrical in form is a little broader above than in the center broadest and somewhat flattened from before backward below. It is […]
Upper extremity of femur
The upper extremity proximal extremity or superior epiphysis of the femur is the part of the femur closes to the pelvic bone and the trunk. It contains the following structures: […]