Across
- 1. System: Transports oxygen, nutrients, hormones, and waste throughout the body. Key organs: Heart, blood vessels, and blood.Digestive System: Breaks down food, absorbs nutrients, and eliminates solid waste. Key organs: Stomach, intestines, liver, and pancreas.Endocrine System: Uses hormones to regulate metabolism, growth, and development. Key organs: Thyroid, pituitary, and adrenal glands.Integumentary System: Protects the body from pathogens, regulates temperature, and prevents dehydration. Key organs: Skin, hair, and nails.Lymphatic (Immune) System: Defends against infections and drains excess bodily fluids. Key organs: Lymph nodes, spleen, and thymus.Muscular System: Enables movement, maintains posture, and generates heat. Key organs: Skeletal muscles, cardiac muscle, and smooth muscle.Nervous System: Controls body activities, perceives the environment, and processes sensory information. Key organs: Brain, spinal cord, and nerves.Reproductive System: Facilitates the production of offspring. Key organs: Ovaries, uterus, testes, and prostate.Respiratory System: Facilitates gas exchange by bringing in oxygen and removing carbon dioxide. Key organs: Lungs, trachea, and bronchi.Skeletal System: Provides structural support, protects internal organs, and produces blood cells. Key organs: Bones, cartilage, and ligaments.Urinary System: Filters blood, eliminates liquid waste, and regulates fluid and electrolyte balance. Key organs: Kidneys, ureters, and bladder.