The Skeletal System Flashcards
cells
the smallest unit of life
tissues
a group of the same type of cells that work together to carry on similar function
organs
a group of tissues that form a unit of the body that carries out specific function
organ systems
groups of organs that work together to carry out specific functions for the human body
skeletal system
one of the body’s 11 body systems
what does the skeletal system allow
The skeletal system allows the body to move, supports the body, protects vital organs, is responsible for the production of red and white blood cells, and store minerals.
Movement
The bones that make up the skeletal system provide an attachment site your muscles.
Support
The bones in your skeletal system allow you to stand up right.
Protection
The bones in the skeletal system cover some of the most vital organs in your body to protect them.
Production of red and white blood cells
Red and white blood cells are formed in your bone marrow. Red blood cells are necessary for transporting body and white blood cells help with fighting off infection.
Mineral storage
The bones store mineral like calcium and phosphorous that help with proper growth and development.
The axial skeleton
The skeletal system is broken down into two parts: The axial skeleton consists of the skull, spine, ribs, and sternum.
The appendicular skeleton
The appendicular skeleton consists of the bones in the appendages and the bones that support them.
Long bones
Bones can be classified based on one of four shapes: Long bones provide strength and structure to a person’s skeleton.These bones have a long shaft and two ends. A person’s femur bone is an example.
Short bones
Short bones are cube like bones that are often composed of spongy bone. A person’s knee bone is an example.
Flat bones
Flat bones have a flat and unrounded shape to them. They are composed of compact and spongy bone. A person’s rib bone is an example.
Irregular bones
Irregular bones do not fit in any other category. They have unique shapes and structures. The vertebrae are examples
Muscular system
is one of the eleven main body systems that are necessary to maintain homeostasis.
Function of the muscular system
is to create movement in the body, pump blood via muscle contractions, protect organs, and produce heat.
Skeletal Muscle
There are three types of muscle tissue that work together allow for these functions to be carried out.
Skeletal Muscle: This type of muscle tissue allows for the movement of the body, as well as to protect vital organs.
Cardiac Muscle
This muscle tissue is found only in an organism’s heart, and it allows the heart to pump blood.
Smooth Muscle
This muscle tissue allows food and blood to move throughout the body. This type of muscle tissue is only found in an organism’s digestive tract and blood vessels.
Voluntary muscles
Skeletal muscle, cardiac muscle, and smooth muscle can be further classified into voluntary and involuntary muscles.
Voluntary muscles- are muscles that you can control. For example, when you are running you can control the movement of the muscles that are in your arms and legs.
Involuntary muscles
Are muscles that you cannot control. For example, you cannot control the muscles that help your heart beat.
Homeostasis
Is the tendency of an organism to maintain a stable internal environment. An organism’s internal environment refers to the conditions inside of the body.
In order to maintain homeostasis, every body system needs to play its part. The eleven body systems rely on each other for support.
Relationships between body systems
In order for organisms to maintain a constant and stable internal environment, the body systems need to work together.
Disruption to Homeostasis
A disruption to homeostasis can lead to disease and even death. A disruption to homeostasis can be cause by internal factors, such as cells not receiving the nutrients they need or waste not being properly removed. It can also be cause by external factors, such as environmental issues(pollution) or lifestyle choices(diet and exercise).
