Skeletal system
How many bones are in the adult human body
206
What system is responsible for all movement in the human body
Muscular system
What is the main organ in the respiratory system
The heart
What part of the body is used to break down food
The stomach
What system takes information through our senses
The nervous system
What is the longest bone in the human body
femur
What are the primary functions of the muscular system
Producing body heat, maintaining posture, and stabilizing joints
What are the main types of blood vessels
Arteries, Veins, and capilleries
What organ is responsible for digesting food
Small intestine
What is the function of the spinal cord
carries signals back and forth between the brain and the rest of the body
What is the difference between ligaments and tendons?
Tendons are thick cords that connect muscles directly to bones.
Ligaments are tough bands of tissue that connect bones to other bones.
What are the three main types of muscle tissue in the human body
Skeletal muscle, Cardiac muscle, Smooth muscle
Which organ is never resting
the heart
Where is water reabsorbed in the digestive system
Large intense
What is the largest part of the human brain
The cerebrum
What is the smallest bone in the human body
The ossicles (located in the inside middle ear)
What are the main proteins responsible for muscle contraction?
Actin and Myosin
What gives blood its red color
Hemoglobin
The liver produces bile
What are the three main functions of the nervous system
Sensory input, Integration, Motor output
What are the two main divisions of the skeletal system?
axial skeletons and Appendicular Skeleton
How do muscles attach to bones
tendons
What brings in oxygen in the capillaries
Circulatory system
What is the function of stomach acid
Stomach acid (hydrochloric acid) creates an ideal environment for protein-digesting enzymes to work and also serves as a defense mechanism by killing harmful bacteria found in food
What are the main parts of the Nervous system
Central Nervous System (CNS) and Peripheral Nervous System (PNS)