Axial Image Through The Midbrain Mamillary Bodies And Optic Tract Figures 110 111 112 and 113 The location of the structures shown in the figures should be known

Figure that the

Brain Aqueduct Axial Image

Cerebellum

Third ventricle

Mamillary body Amygdala CN III

Substantia nigra Red nucleus Hippocampus Trochlear nucleus Nucleus of inferior colliculus Cerebral aqueduct

1-10. Axial section of the brain at the level of the midbrain, mamillary bodies, and amygdala. Note substantia nigra separates the crus cerebri from the tegmentum ot the midbrain.

Optic tract Basis pedunculi

Lateral ventricle

Interhemispheric fissure -Gyrus rectus

Optic tract Mamillary nucleus Red nucleus

Trigone

Superior colliculus

Pedunculi Cerebri

Superior sagittal sinus cerebral artery

Uncus/amygdala

Figure 1-11. Axial magnetic resonance imaging (MR1) section at the level of the midbrain and mamillary bodies. Because of the high iron content, the red nuclei, mamillary bodies, and substantia nigra show a reduced MR1 signal in T2-weighted images. Flowing blood in the cerebral vessels stands out as a signal void. Cerebrospinal fluid produces a strong signal in the ventricles and cisterns.

Superior sagittal sinus

Interhemispheric fissure -Gyrus rectus

Optic tract Mamillary nucleus Red nucleus

Trigone

Superior colliculus cerebral artery

Uncus/amygdala

Crus cerebri nigra

Posterior cerebral artery Quadrigeminal cistern vermis

Straight sinus

Figure 1-11. Axial magnetic resonance imaging (MR1) section at the level of the midbrain and mamillary bodies. Because of the high iron content, the red nuclei, mamillary bodies, and substantia nigra show a reduced MR1 signal in T2-weighted images. Flowing blood in the cerebral vessels stands out as a signal void. Cerebrospinal fluid produces a strong signal in the ventricles and cisterns.

Optic nerve

Amygdala Infundibulum

Superior sagittal sinus -

Cerebral aqueduct

Cerebellar vermis

Vessels The Quadrigeminal Cistern

Substantia nigra

Lateral ventricle (temporal horn)

Lateral ventricle (occipital horn)

Figure 1-12. Axial magnetic resonance imaging section at the level of the optic chiasm, mamillary bodies, and midbrain. This patient has neurofibromatosis type 1 and an optic nerve glioma. Note the si2e of the right optic nerve. The infundibulum is postfixed. This is a Tl-weighted image.

Superior sagittal sinus -

Optic nerve

Amygdala Infundibulum

Substantia nigra

Lateral ventricle (temporal horn)

Lateral ventricle (occipital horn)

Optic nerve Optic

Optic tract Mamillary bodies

Cerebral aqueduct

Cerebellar vermis

Figure 1-12. Axial magnetic resonance imaging section at the level of the optic chiasm, mamillary bodies, and midbrain. This patient has neurofibromatosis type 1 and an optic nerve glioma. Note the si2e of the right optic nerve. The infundibulum is postfixed. This is a Tl-weighted image.

Oculomotor

Posterior cerebral artery Quadrigeminal cistern

Cerebral Aqueduct Axial

Straight sinus

- Superior sagittal sinus

Uncus Crus cerebri

Cerebral aqueduct Cerebellar vermis

Sphenoid sinus

Figure 1—13. Axial magnetic resonance imaging section at the level of the uncal incisure, oculomotor nerve, and inferior colliculus. Is there pathology within the orbit.7

Straight sinus

- Superior sagittal sinus

Uncus Crus cerebri

Cerebral aqueduct Cerebellar vermis

Sphenoid sinus

Oculomotor

Posterior cerebral artery Quadrigeminal cistern

Figure 1—13. Axial magnetic resonance imaging section at the level of the uncal incisure, oculomotor nerve, and inferior colliculus. Is there pathology within the orbit.7

Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

Get My Free Ebook


Responses

Post a comment