Illustration of the female torso, frontal view.

Illustration of the thyroid gland (pink) and the parathyroid glands (gold), rear view.

Illustration of the normal ear anatomy, coronal cross section, showing the outer ear: auricle (ear lobe), external auditory meatus; tympanic membrane (eardrum); middle ear and ossicles: malleus (hammer), incus (anvil), stapes (stirrup); fenestra of cochlea (round window); inner ear: semicircular canals, cochlea, eustachian tube and cochlear nerve.

Illustration of the normal ear anatomy, coronal cross section, showing the outer ear: auricle (ear lobe), external auditory meatus; tympanic membrane (eardrum); middle ear and ossicles: malleus (hammer), incus (anvil), stapes (stirrup); fenestra of cochlea (round window); inner ear: semicircular canals, cochlea, eustachian tube and cochlear nerve.

Illustration showing the facial muscles: frontalis, orbicularis oculi, nasalis, zygomaticus major and minor, orbicularis oris, risorius, mentalis, masseter, temporalis, depressor anguli oris, platysma, and sternocleidomastoid.

Illustration of a nerve bundle, microscopic view, showing the protective sheaths around the nerves: epineurium, endoneurium (Henle's sheath), and perineurium.

Illustration of skin tissue, cross section, showing the epidermis, dermis, hair follicles, sebaceous glands, sweat glands, arteries, and veins.

Illustration of the bone and surrounding tissue, cross section, showing the trabeculae, cortical bone, fat, and skin.

Illustration showing the bones of foot, as well as the Achilles tendon and long plantar ligament, side view.

Illustration showing the muscles of the right knee and lower leg: gastrocnemius, biceps fermoris, vastus intermedialis, vastus lateralis, iliotibial tract, tibialis anterior, extensor digitorum longus, and fibularis longus (peroneus longus). Also shown are the kneecap, ankle bones, foot bones, and tendons, including the Achilles tendon.

Illustration showing the lower surface anatomy of a male figure, frontal view.

Illustration of the lower male anatomy, showing the venous supply, frontal view. Veins shown include the femoral vein, great saphenous vein, and their tributaries.

Illustration of the female pelvic organs, midsagittal section, showing the mons pubis, symphysis pubis, urinary bladder, ovary, fallopian tube, uterus, cervix, vagina, vulva, rectum, anus, and spine.

Illustration of the vasculature of the male genitalia, showing the erectile tissue, testicles, internal iliac artery, dorsal artery of the penis, and perineal artery.

Illustration of the primary skeletal and muscular anatomy of the female back, rear view. Shown are the bones: skull, spine, scapula, humerus, ribs, and pelvis, as well as the muscles: trapezius, deltoid, teres major and minor, latissimus dorsi, and gluteus maximus.

Illustration of the normal female breast, side cutaway view.

Illustration of the heart showing the coronary arteries, frontal view.

Illustration of the heart and lungs, showing the pulmonary artery circulation, frontal cutaway view. The ventricles of the heart and anterior surfaces of the lungs are cutaway to show the network of pulmonary arteries from the heart to the lungs.

Illustration of the bones of the hand, palmar view, showing the radius, ulna, carpals, metacarpals, and phalanges.

Illustration of the male pelvic organs, midsagittal section, showing the penis, testicle, urethra, pubis, urinary bladder, prostate gland, rectum, and anus.