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Questions and Answers
What is the main function of the skeletal system?
What is the main function of the skeletal system?
The nervous system is responsible for regulating body temperature.
The nervous system is responsible for regulating body temperature.
True
What is the main function of the digestive system?
What is the main function of the digestive system?
To break down food into nutrients
The muscular system is composed of _______________, smooth muscles, and cardiac muscles.
The muscular system is composed of _______________, smooth muscles, and cardiac muscles.
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Which system is responsible for transporting oxygen and nutrients to cells?
Which system is responsible for transporting oxygen and nutrients to cells?
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Match the following systems with their functions:
Match the following systems with their functions:
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The placenta is a permanent organ that develops during pregnancy.
The placenta is a permanent organ that develops during pregnancy.
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What is the main function of the nervous system?
What is the main function of the nervous system?
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The _______________ system is responsible for producing blood cells.
The _______________ system is responsible for producing blood cells.
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Which system is responsible for regulating heart rate and blood pressure?
Which system is responsible for regulating heart rate and blood pressure?
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Study Notes
Skeletal System
- Composed of 206 bones that provide support, protection, and movement for the body
- Divided into two main parts: axial skeleton (skull, spine, ribcage, sternum) and appendicular skeleton (upper and lower limbs, pelvis, and shoulder girdle)
- Functions:
- Support: provides a framework for the body
- Protection: encloses and protects internal organs
- Movement: acts as a system of levers and joints to facilitate movement
- Blood cell production: bones are responsible for producing blood cells
- Storage of minerals: bones act as a storage site for minerals such as calcium and phosphorus
Nervous System
- Consists of the central nervous system (CNS) and peripheral nervous system (PNS)
- CNS: brain and spinal cord
- PNS: nerves that connect CNS to the rest of the body
- Functions:
- Control and coordination: integrates and interprets sensory information and responds accordingly
- Regulation: regulates various bodily functions such as heart rate, blood pressure, and body temperature
Digestive System
- Composed of the mouth, esophagus, stomach, small intestine, and large intestine
- Functions:
- Ingestion: takes in food and liquids
- Mechanical digestion: breaks down food into smaller particles
- Chemical digestion: breaks down food into nutrients using enzymes and acids
- Absorption: absorbs nutrients into the bloodstream
- Elimination: eliminates waste products
Muscular System
- Composed of skeletal muscles, smooth muscles, and cardiac muscles
- Functions:
- Movement: enables movement and locomotion
- Support: provides support and stability for the body
- Regulation: regulates body temperature and blood pressure
- Protection: protects internal organs
Circulatory System
- Composed of the heart, arteries, veins, and blood vessels
- Functions:
- Transportation: transports oxygen and nutrients to cells and removes waste products
- Regulation: regulates blood pressure and body temperature
- Protection: protects the body against infection and disease
Hip Joint
- Ball-and-socket joint that connects the femur (thigh bone) to the pelvis
- Functions:
- Movement: enables movement and rotation of the leg
- Support: provides support and stability for the body
Placenta
- Temporary organ that develops during pregnancy
- Functions:
- Nutrition: provides nutrients and oxygen to the fetus
- Waste removal: removes waste products from the fetus
- Hormone regulation: regulates hormone production during pregnancy
Shoulder Joint
- Ball-and-socket joint that connects the humerus (upper arm bone) to the scapula (shoulder blade)
- Functions:
- Movement: enables movement and rotation of the arm
- Support: provides support and stability for the arm
Elbow Joint
- Hinge joint that connects the humerus (upper arm bone) to the radius and ulna (forearm bones)
- Functions:
- Movement: enables movement and flexion of the arm
- Support: provides support and stability for the arm
Knee Joint
- Hinge joint that connects the femur (thigh bone) to the tibia (shin bone)
- Functions:
- Movement: enables movement and flexion of the leg
- Support: provides support and stability for the leg
Skeletal System
- The adult human skeletal system consists of 206 bones
- Divided into two main parts: axial skeleton (skull, spine, ribcage, sternum) and appendicular skeleton (upper and lower limbs, pelvis, and shoulder girdle)
- The skeletal system provides support, protection, and movement for the body
- It also produces blood cells and stores minerals such as calcium and phosphorus
Nervous System
- The central nervous system (CNS) consists of the brain and spinal cord
- The peripheral nervous system (PNS) consists of nerves that connect the CNS to the rest of the body
- The nervous system controls and coordinates the body's functions, regulates heart rate, blood pressure, and body temperature
Digestive System
- The digestive system consists of the mouth, esophagus, stomach, small intestine, and large intestine
- It ingests food and liquids, breaks down food into smaller particles, and absorbs nutrients into the bloodstream
- The digestive system also eliminates waste products from the body
Muscular System
- The muscular system consists of skeletal muscles, smooth muscles, and cardiac muscles
- It enables movement and locomotion, provides support and stability for the body, and regulates body temperature and blood pressure
- The muscular system also protects internal organs
Circulatory System
- The circulatory system consists of the heart, arteries, veins, and blood vessels
- It transports oxygen and nutrients to cells and removes waste products
- The circulatory system also regulates blood pressure and body temperature, and protects the body against infection and disease
Joints
Hip Joint
- The hip joint is a ball-and-socket joint that connects the femur (thigh bone) to the pelvis
- It enables movement and rotation of the leg and provides support and stability for the body
Shoulder Joint
- The shoulder joint is a ball-and-socket joint that connects the humerus (upper arm bone) to the scapula (shoulder blade)
- It enables movement and rotation of the arm and provides support and stability for the arm
Elbow Joint
- The elbow joint is a hinge joint that connects the humerus (upper arm bone) to the radius and ulna (forearm bones)
- It enables movement and flexion of the arm and provides support and stability for the arm
Knee Joint
- The knee joint is a hinge joint that connects the femur (thigh bone) to the tibia (shin bone)
- It enables movement and flexion of the leg and provides support and stability for the leg
Placenta
- The placenta is a temporary organ that develops during pregnancy
- It provides nutrients and oxygen to the fetus, removes waste products from the fetus, and regulates hormone production during pregnancy
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Description
Learn about the structure and functions of the human skeletal system, including its composition, main parts, and roles in supporting the body.
