Human Organ Systems

Organ Systems

• Nervous system: brain, spinal cord, nerves
• Circulatory system: heart, blood vessels, blood
• Respiratory system: lungs, trachea, bronchi
• Digestive system: mouth, esophagus, stomach, small intestine, large intestine
• Endocrine system: glands (pituitary, thyroid, adrenal, pancreas)
• Integumentary system: skin, hair, nails, sweat glands
• Muscular system: skeletal muscles, smooth muscles, cardiac muscle
• Skeletal system: bones, cartilage, ligaments
• Urinary system: kidneys, ureters, bladder, urethra
• Reproductive system: sex organs (male and female)

Body Cavities

• Cranial cavity: contains brain
• Thoracic cavity: contains heart, lungs
• Abdominal cavity: contains digestive organs
• Pelvic cavity: contains reproductive organs

Directional Terms

• Anatomical position: standing upright, feet shoulder-width apart, arms at sides
• Superior: above or higher
• Inferior: below or lower
• Anterior: front or ventral
• Posterior: back or dorsal
• Medial: towards the midline
• Lateral: away from the midline
• Proximal: closer to the trunk
• Distal: farther from the trunk

Body Regions

• Axial region: head, neck, thorax, abdomen
• Appendicular region: upper limbs, lower limbs
• Cephalic region: head
• Thoracic region: chest
• Abdominal region: belly
• Pelvic region: pelvis
• Upper limb: arm, forearm, hand
• Lower limb: thigh, leg, foot

Tissue Types

• Epithelial tissue: skin, glands, lining of organs
• Connective tissue: bone, cartilage, fat, blood
• Muscle tissue: skeletal, smooth, cardiac
• Nervous tissue: brain, spinal cord, nerves

Organ Systems

• The nervous system consists of the brain, spinal cord, and nerves.
• The circulatory system is made up of the heart, blood vessels, and blood.
• The respiratory system includes the lungs, trachea, and bronchi.
• The digestive system consists of the mouth, esophagus, stomach, small intestine, and large intestine.
• The endocrine system is composed of glands such as the pituitary, thyroid, adrenal, and pancreas.
• The integumentary system includes the skin, hair, nails, and sweat glands.
• The muscular system consists of skeletal muscles, smooth muscles, and cardiac muscle.
• The skeletal system is made up of bones, cartilage, and ligaments.
• The urinary system includes the kidneys, ureters, bladder, and urethra.
• The reproductive system comprises the sex organs in both males and females.

Body Cavities

• The cranial cavity contains the brain.
• The thoracic cavity contains the heart and lungs.
• The abdominal cavity contains the digestive organs.
• The pelvic cavity contains the reproductive organs.

Directional Terms

• Anatomical position is defined as standing upright, with feet shoulder-width apart, and arms at sides.
• Superior refers to a location above or higher.
• Inferior refers to a location below or lower.
• Anterior refers to the front or ventral side.
• Posterior refers to the back or dorsal side.
• Medial refers to a location towards the midline.
• Lateral refers to a location away from the midline.
• Proximal refers to a location closer to the trunk.
• Distal refers to a location farther from the trunk.

Body Regions

• The axial region includes the head, neck, thorax, and abdomen.
• The appendicular region includes the upper and lower limbs.
• The cephalic region refers to the head.
• The thoracic region refers to the chest.
• The abdominal region refers to the belly.
• The pelvic region refers to the pelvis.
• The upper limb includes the arm, forearm, and hand.
• The lower limb includes the thigh, leg, and foot.

Tissue Types

• Epithelial tissue is found in the skin, glands, and lining of organs.
• Connective tissue is found in bone, cartilage, fat, and blood.
• Muscle tissue is classified into skeletal, smooth, and cardiac.
• Nervous tissue is found in the brain, spinal cord, and nerves.

This quiz covers the different systems of the human body, including the nervous, circulatory, respiratory, digestive, endocrine, integumentary, muscular, and skeletal systems. It tests your knowledge of the various organs and components that make up each system.