Heart attack in obese man, computer illustration.

Heart attack in obese man. Conceptual illustration showing a fatty heart in an overweight man and an electrocardiogram with signs of myocardial infarction (heart attack).

Fatty heart, computer illustration.

Toxic diffuse goiter, Flajani-Basedow-Graves' disease. 3D illustration showing enlarged thryoid gland in a female with hyperthyroidism

Toxic diffuse goiter, Flajani-Basedow-Graves' disease. 3D illustration showing enlarged thryoid gland in a female with hyperthyroidism

Cholesterol plaque in artery, 3D illustration. Concept for coronary artery disease

Cholesterol plaque in artery, 3D illustration. Concept for coronary artery disease

Cholesterol plaque in artery, 3D illustration. Concept for coronary artery disease

Cholesterol plaque in artery, 3D illustration. Concept for coronary artery disease

Cholesterol plaque in artery, 3D illustration. Concept for coronary artery disease

Cholesterol plaque in artery, 3D illustration. Concept for coronary artery disease

Illustration of the knee extensor mechanism, which consists of the quadriceps muscle group (rectus femoris, vastus intermedius, and vastus medialis), patella, and patellar tendon. Bony and ligamentous constraints account for the static stability of the patellofemoral joint.

Illustration of the normal human anatomy of an appendix, colon, and rectum (male or female).

Illustration of the normal human anatomy of vasculature of the torso, frontal sub-diaphragm view. Shown are the hepatic veins, inferior vena cava, aorta, iliac veins, and inferior epigastric veins.

Illustration of the normal human anatomy of the upper tract of the kidneys and ureters. Shown are the celiac trunk, abdominal aorta, superior mesenteric artery, renal artery and vein, ureter, common iliac artery, inferior vena cava, bladder, adrenal glands, and kidneys.

Illustration of the normal human anatomy of the stomach (beige), gallbladder (green) and pancreas (yellow). Also shown are the duodenum, pylorus, liver, diaphragm, and spleen.

Illustration showing the pelvic anatomy of a normal female, cutaway cross section. Shown are the ovary, fallopian tube, fimbria, uterus, bladder, urinary tract, symphysis pubis, dorsal vein of the clitoris, clitoris, urethra, urethral sphincter, vagina, vulva, colon, rectal sphincter, and rectum.

Illustration of the normal human anatomy of the male urinary system, cutaway cross section. Shown are the urinary bladder, ureteral orifice, rectum, rectal sphincter, bulbourethral gland (Cowper's gland), fossa navicularis and external meatus of the urethra, dorsal vein of the penis, penis, scrotum, prostate gland, and prostatic fascia.

Illustration of the normal human anatomy of a kidney, cutaway cross section. Shown are the renal artery, renal vein, ureter, upper calyx, lower calyx, and glomerulus.

Illustration of the normal human anatomy of the male urinary system, cutaway side view. Shown are the urinary bladder, ureteral orifice, urethra, symphysis pubis, penis, scrotum, testis, prostate gland, anus, rectum, and rectal sphincter.