What is Trochlear fovea?
What is Trochlear fovea?
Medical Definition of trochlear fovea : a depression that is located in the anteromedial aspect of the orbital surface of each bony plate of the frontal bone making up the superior part of one of the orbits and that forms a point of attachment for the corresponding superior oblique muscle of the eye.
Where is the Fovea Centralis?
macula lutea
The fovea centralis is located in the center of the macula lutea, a small, flat spot located exactly in the center of the posterior portion of the retina. As the fovea is responsible for high-acuity vision it is densely saturated with cone photoreceptors.
What’s the difference between Fossa and fovea?
A fossa (from the Latin “fossa”, ditch or trench) is a depression or hollow, usually in a bone, such as the hypophyseal fossa, the depression in the sphenoid bone. A fovea (Latin: pit) is a small pit, usually on the head of a bone. An example of a fovea is the fovea capitis of the head of the femur.
What is the fovea of a bone?
A small cuplike depression or pit in a bone or organ. A small cuplike depression or pit in a bone or organ.
What is trochlea of face?
The trochlea of superior oblique is a pulley-like structure in the eye. The tendon of the superior oblique muscle passes through it. Situated on the superior nasal aspect of the frontal bone, it is the only cartilage found in the normal orbit. The word trochlea comes from the Greek word for pulley.
What is the trochlea?
Definition of trochlea : an anatomical structure that is held to resemble a pulley especially : the articular surface on the medial condyle of the humerus that articulates with the ulna.
What is fovea centralis and why it is important?
It is located in the center of the macula lutea of the retina. The fovea is responsible for sharp central vision (also called foveal vision), which is necessary in humans for activities for which visual detail is of primary importance, such as reading and driving.
What is fovea centralis and macula lutea?
The fovea centralis is located in the center of the macula lutea, a small, flat spot located exactly in the center of the posterior portion of the retina. As the fovea is responsible for high-acuity vision it is densely saturated with cone photoreceptors.
What are the 2 categories of bone markings?
There are three general classes of bone markings: (1) articulations, (2) projections, and (3) holes. As the name implies, an articulation is where two bone surfaces come together (articulus = “joint”).
What type of bone surface marking allows for muscle attachment?
Spine. The spine (or spinous process) is a sharp, slender projection of the bone which is useful for attachment of muscles or ligaments.
Is fovea same as macula?
The macula is the center portion of the retina that produces even sharper vision with its rods and cones. The fovea is the pit inside the macula with only cones, so vision can be at its sharpest. While the fovea and the macula have the same objective of providing clear vision, they achieve that goal in different ways.
What is fovea psychology?
a small depression in the central portion of the retina in which retinal cone cells are most concentrated and an image is focused most clearly. Also called fovea.
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