Body Systems Quiz

Organism's body is made up of several systems that work together to maintain homeostasis and perform various functions
Major body systems:
- Nervous system: controls and coordinates body functions
- Circulatory system: transports oxygen and nutrients to cells
- Respiratory system: brings oxygen into the body and removes carbon dioxide
- Digestive system: breaks down food into nutrients
- Endocrine system: produces and regulates hormones
- Immune system: protects the body from pathogens
- Muscular system: moves the body and maintains posture
- Skeletal system: provides support and protection
- Integumentary system: protects the body from external damage

Provides support, protection, and movement for the body
Composed of:
- Bones (206 in adult humans)
- Joints (connect bones and allow for movement)
- Ligaments (connect bones to each other)
- Tendons (connect muscles to bones)
Functions:
- Supports body weight and maintains posture
- Protects internal organs
- Allows for movement through joint articulation
- Produces blood cells in bone marrow

Composed of:
- Skeletal muscles (voluntary, attached to bones)
- Smooth muscles (involuntary, found in walls of hollow organs)
- Cardiac muscles (involuntary, found in heart)
Functions:
- Moves body parts and maintains posture
- Regulates body temperature
- Maintains blood pressure
- Aids in digestion and circulation

Nerve cells (neurons):
- Receive and transmit signals
- Composed of dendrites, cell body, and axon
Synapses:
- Gaps between neurons where signals are transmitted
- Chemical signals (neurotransmitters) are released and received
Types of neurons:
- Sensory neurons: transmit signals from sensory receptors to CNS
- Motor neurons: transmit signals from CNS to muscles and glands
- Interneurons: integrate and process information within CNS

Organs:
- Self-contained structures that perform specific functions
- Examples: heart, lungs, liver, kidneys
Tissues:
- Groups of similar cells that perform specific functions
- Examples: epithelial tissue, connective tissue, muscle tissue, nervous tissue
Epithelial tissue:
- Forms lining of organs and glands
- Functions: protection, absorption, secretion
Connective tissue:
- Supports and connects other tissues and organs
- Functions: support, protection, storage

The body is composed of several systems that work together to maintain homeostasis and perform various functions
The major body systems include:
- Nervous system, which controls and coordinates body functions
- Circulatory system, which transports oxygen and nutrients to cells
- Respiratory system, which brings oxygen into the body and removes carbon dioxide
- Digestive system, which breaks down food into nutrients
- Endocrine system, which produces and regulates hormones
- Immune system, which protects the body from pathogens
- Muscular system, which moves the body and maintains posture
- Skeletal system, which provides support and protection
- Integumentary system, which protects the body from external damage

The skeletal system provides support, protection, and movement for the body
It is composed of 206 bones in adult humans, joints, ligaments, and tendons
The functions of the skeletal system include:
- Supporting body weight and maintaining posture
- Protecting internal organs
- Allowing for movement through joint articulation
- Producing blood cells in bone marrow

The muscular system is composed of skeletal muscles, smooth muscles, and cardiac muscles
Skeletal muscles are voluntary and attached to bones, while smooth muscles are involuntary and found in the walls of hollow organs
Cardiac muscles are involuntary and found in the heart
The functions of the muscular system include:
- Moving body parts and maintaining posture
- Regulating body temperature
- Maintaining blood pressure
- Aiding in digestion and circulation

Nerve cells (neurons) receive and transmit signals and are composed of dendrites, cell body, and axon
Synapses are gaps between neurons where chemical signals (neurotransmitters) are released and received
There are three types of neurons:
- Sensory neurons, which transmit signals from sensory receptors to the central nervous system (CNS)
- Motor neurons, which transmit signals from the CNS to muscles and glands
- Interneurons, which integrate and process information within the CNS

Organs are self-contained structures that perform specific functions
Examples of organs include the heart, lungs, liver, and kidneys
Tissues are groups of similar cells that perform specific functions
Examples of tissues include epithelial tissue, connective tissue, muscle tissue, and nervous tissue
Epithelial tissue forms the lining of organs and glands and has functions such as protection, absorption, and secretion
Connective tissue supports and connects other tissues and organs and has functions such as support, protection, and storage

Inside-the-Park Home Run: batter reaches home plate without the ball leaving the playing field
Typically occurs when the ball is hit into a gap in the outfield and the batter circles the bases before the ball is relayed back to the infield