Parts of the Skeletal System/ Functions
What are the functions of the Skeletal System?
1. The Skeletal System protects fragile organs. (PROTECTION)
- The Human Body has so many organs that need to be protected. For example, fragile organs would be the heart and lungs. The heart and lungs are very delicate and needs something to protect them, which in this case is the ribs. Two more examples would be the skull protecting the brain and the spine protecting the spinal cord.
2. The Skeletal System stores minerals. (STORAGE)
- The bones act like a storage reservoir for certain chemicals, mainly calcium and phosphate. These are the two, along with others (potassium and magnesium), that make up bones. Suppose you have a muscle contraction, you would have a dietary shortage. These are the stored minerals that will get released from bones into the bloodstream to help you, and these will get distributed accordingly to where they are needed. They come in ion form and usually are under the control of hormones.
3. The Skeletal System makes new blood cells. (FORMATION)
- The formation of the blood cells takes place within the red marrow of the bones. This is known as hematopoiesis. Some other parts this takes place is in the skull, ribs, vertebrae, pelvis, sternum, and clavicles. The fat that is created is stored in the yellow bone marrow.
4. The Skeletal System supports our soft organs. (SUPPORT)
- All the bones in the skeletal system support and provide us a structural framework of the attachment of bones and organs. Soft organs are supported against gravity whereas big bones of the lower limbs hold us standing.
5. The Skeletal System takes part within movement. (AID)
- By attachment, the body moves by using muscles. They produce motion by working as mechanical levers. The different types of joint usually determine the range and type of movement.
1. The Skeletal System protects fragile organs. (PROTECTION)
- The Human Body has so many organs that need to be protected. For example, fragile organs would be the heart and lungs. The heart and lungs are very delicate and needs something to protect them, which in this case is the ribs. Two more examples would be the skull protecting the brain and the spine protecting the spinal cord.
2. The Skeletal System stores minerals. (STORAGE)
- The bones act like a storage reservoir for certain chemicals, mainly calcium and phosphate. These are the two, along with others (potassium and magnesium), that make up bones. Suppose you have a muscle contraction, you would have a dietary shortage. These are the stored minerals that will get released from bones into the bloodstream to help you, and these will get distributed accordingly to where they are needed. They come in ion form and usually are under the control of hormones.
3. The Skeletal System makes new blood cells. (FORMATION)
- The formation of the blood cells takes place within the red marrow of the bones. This is known as hematopoiesis. Some other parts this takes place is in the skull, ribs, vertebrae, pelvis, sternum, and clavicles. The fat that is created is stored in the yellow bone marrow.
4. The Skeletal System supports our soft organs. (SUPPORT)
- All the bones in the skeletal system support and provide us a structural framework of the attachment of bones and organs. Soft organs are supported against gravity whereas big bones of the lower limbs hold us standing.
5. The Skeletal System takes part within movement. (AID)
- By attachment, the body moves by using muscles. They produce motion by working as mechanical levers. The different types of joint usually determine the range and type of movement.
What are the parts of the Skeletal System?
1. There are 206 bones in the skeletal system. These are divided into two sections: the axial and the appendicular skeletons.
2. Axial Skeleton
- 80 bones are in the axial skeleton, and this includes the skull, vertebrae, ribs, and sternum.
Skull
- There are 22 bones in the skull, eight in the cranium, and fourteen facial bones. The cranium protects the brain and a rigid shell.
Vertebrae
- The backbone has 33 vertebrae that form a slight S-curve shape. There are twelve in the chest (thoracic), seven neck (cervical) vertebrae, and five lower back (lumbar) vertebrae. Under these are the sacrum and the coccyx which contain nine in all (five for sacrum and four for coccyx).
Ribs
- The rib cage, which holds the ribs, contains 12 pairs of flat bones. The upper seven ribs are known as the true limbs, the eight to ten ribs are known as the false ribs, and the last two are known as the floating ribs.
3. Appendicular Skeleton
-126 bones are in the appendicular skeleton, and this includes the limbs and their attachments.
Limbs
-All the limbs make up the bones in the appendicular skeleton. For example, the arms have a humerus bone (upper arm) and the radius and ulna (forearm). The hands have 27 bones, which consists of the carpals (wrist), metacarpals (hand), and the phalanges (fingers). The leg has a femur (thigh), tibia (shin), and the fibula. The feet have 26 bones, which consists of the tarsals (ankle), metatarsals (heel/sole), and the phalanges (toes).
Limb attachments
- Also known as limb girdles, the attachment's main function is to attach the appendicular skeleton to the axial skeleton as the picture shown above. In each shoulder attachment, there is a scapula and a clavicle bringing it together whereas in the hip attachment, the hip bones and the sacrum make up the pelvis.
Link Below: Learn and test yourself over these words (they are the main key words and parts of the skeletal system)
1. There are 206 bones in the skeletal system. These are divided into two sections: the axial and the appendicular skeletons.
2. Axial Skeleton
- 80 bones are in the axial skeleton, and this includes the skull, vertebrae, ribs, and sternum.
Skull
- There are 22 bones in the skull, eight in the cranium, and fourteen facial bones. The cranium protects the brain and a rigid shell.
Vertebrae
- The backbone has 33 vertebrae that form a slight S-curve shape. There are twelve in the chest (thoracic), seven neck (cervical) vertebrae, and five lower back (lumbar) vertebrae. Under these are the sacrum and the coccyx which contain nine in all (five for sacrum and four for coccyx).
Ribs
- The rib cage, which holds the ribs, contains 12 pairs of flat bones. The upper seven ribs are known as the true limbs, the eight to ten ribs are known as the false ribs, and the last two are known as the floating ribs.
3. Appendicular Skeleton
-126 bones are in the appendicular skeleton, and this includes the limbs and their attachments.
Limbs
-All the limbs make up the bones in the appendicular skeleton. For example, the arms have a humerus bone (upper arm) and the radius and ulna (forearm). The hands have 27 bones, which consists of the carpals (wrist), metacarpals (hand), and the phalanges (fingers). The leg has a femur (thigh), tibia (shin), and the fibula. The feet have 26 bones, which consists of the tarsals (ankle), metatarsals (heel/sole), and the phalanges (toes).
Limb attachments
- Also known as limb girdles, the attachment's main function is to attach the appendicular skeleton to the axial skeleton as the picture shown above. In each shoulder attachment, there is a scapula and a clavicle bringing it together whereas in the hip attachment, the hip bones and the sacrum make up the pelvis.
Link Below: Learn and test yourself over these words (they are the main key words and parts of the skeletal system)