Figure 35-2 Human Organ Systems Part I Section 35-1 Nervous System Integumentary System Skeletal System Muscular System Circulatory System

Figure 38–10 The Digestive System Section 38-2 Mouth Salivary glands Stomach Pancreas (behind stomach) Large intestine Small intestine Rectum Gallbladder (behind liver) Liver Esophagus Pharynx

Figure 38–13 The Liver and the Pancreas Section 38-2 Liver Gallbladder Duodenum Bile duct Pancreas Pancreatic duct To rest of small intestine

Figure 37-11 The Lymphatic System Section 37-2 Superior vena cava Thymus Heart Thoracic duct Spleen Lymph nodes Lymph vessels

The Urinary System Section 38-3 Artery Vein Kidney (Cross Section) Cortex Medulla Ureter Urinary bladder Urethra

Figure 35-9 The Brain Section 35-3 Cerebrum Thalamus Pineal gland Pons Pituitary gland Hypothalamus Cerebrum Medulla oblongata Spinal cord Cerebellum Pineal gland Thalamus

Figure 35-14 The Eye Section 35-4 Choroid Retina Blood vessels Optic nerve Fovea Vitreous humor Sclera Ligaments Iris Pupil Cornea Aqueous humor Lens Muscle

Figure 35-15 The Ear Section 35-4 Auditory canal Tympanum Round window Eustachian tube Bone Cochlea Cochlear nerve Semicircular canals Oval window Stirrup Anvil Hammer

Appendicular Skeleton The Skeletal System Section 36-1 Skull Sternum Ribs Vertebral column Axial Skeleton Appendicular Skeleton Metatarsals Metacarpals Phalanges Clavicle Scapula Humerus Radius Pelvis Ulna Carpals Femur Patella Fibula Tibia Tarsals

Figure 36-13 The Structure of Skin Section 36-3

Figure 37-13 The Respiratory System Section 37-3

Figure 39–2 The Endocrine Glands Section 39-1 Hypothalamus The hypothalamus makes hormones that control the pituitary gland. In addition, it makes hormones that are stored in the pituitary gland. Pineal gland The pineal gland releases melatonin, which is involved in rhythmic activities, such as daily sleep-wake cycles. Thyroid The thyroid produces thyroxine, which regulates metabolism. Pituitary gland The pituitary gland produces hormones that regulate many of the other endocrine glands. Pancreas The pancreas produces insulin and glucagon, which regulate the level of glucose in the blood. Parathyroid glands These four glands release parathyroid hormone, which regulate the level of calcium in the blood. Ovary The ovaries produce estrogen and progesterone. Estrogen is required for the development of secondary sex characteristics and for the development of eggs. Progesterone prepares the uterus for a fertilized egg. Thymus During childhood, the thymus releases thymosin, which stimulates Tcell development. Testis The testes produce testosterone, which is responsible for sperm production and the development of male secondary sex characteristics Adrenal glands The adrenal glands release epinephrine and nonepinephrine, which help the body deal with stress.

Figure 39–12 The Male Reproductive System Section 39-3

Figure 39–14 The Female Reproductive System Section 39-3