Podcast
Questions and Answers
How does the skeleton contribute to the body's structure and firmness?
How does the skeleton contribute to the body's structure and firmness?
The skeleton forms the hard structure of the body and gives it a definite shape.
What are the two main divisions of the human skeleton?
What are the two main divisions of the human skeleton?
Exoskeleton and endoskeleton.
Besides structure, what is another vital function of the skeleton, particularly the skull and ribcage?
Besides structure, what is another vital function of the skeleton, particularly the skull and ribcage?
Protection of internal organs.
How does the attachment of muscles to the bones facilitate movement?
How does the attachment of muscles to the bones facilitate movement?
What role does bone marrow play in the human body?
What role does bone marrow play in the human body?
What minerals are stored in bones, contributing to their hardness and strength?
What minerals are stored in bones, contributing to their hardness and strength?
How many bones compose the human skeleton?
How many bones compose the human skeleton?
What connects bones to each other?
What connects bones to each other?
What is the role of the vertebral column?
What is the role of the vertebral column?
What is the endoskeleton mainly composed of?
What is the endoskeleton mainly composed of?
Name three bones found in the arm.
Name three bones found in the arm.
What bones constitute the ribcage?
What bones constitute the ribcage?
Give examples of bones in the leg.
Give examples of bones in the leg.
What is the function of the pelvis?
What is the function of the pelvis?
What is the role of muscles in relation to bones?
What is the role of muscles in relation to bones?
What are the respective functions of maxilla and mandible?
What are the respective functions of maxilla and mandible?
What bones are found in fingers and toes?
What bones are found in fingers and toes?
What are the components of the human skeleton?
What are the components of the human skeleton?
What bones are part of the pectoral girdle?
What bones are part of the pectoral girdle?
What are the different types of bones that form the human skeleton?
What are the different types of bones that form the human skeleton?
Flashcards
Human Skeleton
Human Skeleton
The framework of the body, composed of 206 bones, providing shape and protecting internal organs.
Exoskeleton
Exoskeleton
Parts of the skeleton that exist outside the body, such as nails and hair.
Endoskeleton
Endoskeleton
The part of the skeleton that cannot be seen from the outside, mainly composed of cartilages and bones.
Skeleton's Role: Structure and Firmness
Skeleton's Role: Structure and Firmness
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Skeleton's Role: Protection
Skeleton's Role: Protection
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Skeleton's Role: Movement
Skeleton's Role: Movement
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Skeleton's Role: Red Blood Cell Production
Skeleton's Role: Red Blood Cell Production
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Skeleton's Role: Mineral Storage
Skeleton's Role: Mineral Storage
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Bone
Bone
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Study Notes
Introduction to the Human Skeleton
- The skeleton is the body's framework.
- It consists of 206 bones of different shapes, like long, small, flat, and unequal.
- The skeleton gives the body its shape and protects internal organs, such as the heart, lungs, stomach, and brain.
- Bones and their associated parts constitute the skeleton.
Skeletal Components
- Key bones include the skull, cranium, maxilla, mandible, ulna, humerus, radius, carpals, metacarpals, phalanges, ribcage, sternum, ribs, vertebral column, vertebrae, femur, patella, tibia, fibula, tarsal, metatarsal, pubis, sacrum, coccyx, and ilium.
- Bone joints are connected with the various parts of the skeleton and assist in movement through voluntary muscles.
- The skeletal system comprises bones, cartilages, ligaments, tendons, bone joints, and muscles.
Exoskeleton and Endoskeleton
- The human skeleton can be divided into the exoskeleton and the endoskeleton.
- The exoskeleton includes parts outside the body, such as nails and hair.
- The endoskeleton is the part that cannot be seen from the outside and is mainly made of cartilages and bones.
Role of the Skeleton
- The skeleton provides the body's structure and firmness.
- It offers protection, with the skull protecting the brain, the vertebral column protecting the spinal cord, and the thorax protecting the lungs and heart.
- Hands, legs, shoulders, and the pectoral and pelvic girdles aid in movement and locomotion, which is facilitated by the muscular system.
- Bone marrow produces red blood cells.
- Bones store mineral salts, such as calcium, potassium, and phosphorus, contributing to their hardness and strength.
Bone Composition
- Bone is a modified form of connective tissue and the hardest tissue in the body.
- Its matrix is the intercellular substance of the bone.
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