Illustration comparing normal eye structures (bottom left) with those of primary angle closure glaucoma (bottom right), cutaway view. The anatomy of the frontal portion of the eye is shown, with labels for the cornea, iris, Canal of Schlemm, collecting channels, trabecular meshwork, ciliary body, sclera, and lens. The inset shows normal aqueous flow.

Illustration of atherosclerosis, showing the heart and cornary arteries. The details depict a normal artery (top) versus an atherosclerotic artery (bottom).

Illustration of the heart, showing the cardiac conduction system, cutaway view.

Illustration showing the anatomy of the eye.

Illustration of the eye anatomy: cornea, sclera, iris, lens, ciliary body, anterior chamber, posterior chamber, trabecular meshwork, and canal of Schlemm, cutaway view.

Illustration of the heart, anterior cutaway view, with a detail of the mitral (bicuspid) valve located between the left atrium and left ventricle. Also shown are the anterior and posterior leaflets, chordae tendineae, and papillary muscles.

Illustration of a full-term fetus and the normal fetal membrane during pregnancy, sagittal cutaway view. A blue membranous capsule surrounds the fetus. The detail shows the amnion, chorion, decidua, and uterus.

Illustration of the upper digestive system within a female figure: oral cavity, tongue, epiglottis, trachea, esophagus, hiatal ring, diaphragm, and stomach.

Illustration of the intermediate and superficial back muscles: trapezius, rhomboid, deltoid, scapula, and latissimus dorsi muscles.

Illustrated diagram of blood flow to the heart, lungs, and body.

Illustration of the heart, anterior (left) and posterior (right) views. The pulmonary trunk is removed to show the entire aortic arch.

Illustration of the brain, cranial nerves, spinal cord, and cervical vertebrae, cutaway view.

Illustration of the temporomandibular joint (TMJ) and surrounding muscles: masseter, pterygoid, and temporalis muscles.

Illustration of the normal anatomy of the biliary system in relation to the liver, gall bladder, abdominal aorta, and stomach, anterior view. The inset shows a detail of Calot's triangle: the cystic artery, cystic duct, and hepatic duct, along with the right hepatic artery.

Illustration of the renal (kidney) anatomy and major blood vessels: right kidney, left kidney, fibrous capsule, renal cortex, right renal artery, right renal vein, inferior vena cava, renal pelvis. The blood circulation into and out of the kidneys is depicted with red and blue arrows.

Illustration of the facial nerve branches: temporal, zygomatic, buccal, mandibular, and cervical nerves, and associated facial muscles, side cutaway view.

Illustration of the left foot and ankle showing the bones and ligaments: tibia, fibula, medial malleolus, talus, deltoid ligament, tibiofibular ligament, tibiofibular syndesmosis joint, lateral malleolus, and mortise joint, anterior view.

Illustration of the male abdomen, pelvis, and legs showing blood circulation in the major arteries: abdominal aorta, common iliac, femoral, popliteal, and anterior tibial arteries, anterior view.

Illustration of the male torso and the anatomy the pelvic bones and hips, posterior view. Shown are the lumbosacral spine, iliac crests, hip joints, and proximal femoral heads.

Illustration of the left foot and ankle bones: tibia, fibula, medial malleolus, talus, inferior articular surface, and lateral malleolus, anterior view.