Functions of the Skeleton and Bone Composition
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Questions and Answers

What are the three main functions of the skeleton mentioned in the text?

  • Gives shape and structure, allows movement, protects internal organs (correct)
  • Supports the body, produces blood cells, regulates metabolism
  • Facilitates digestion, coordinates breathing, aids reproduction
  • Stores energy, maintains body temperature, provides sensory feedback

    • What is a key distinction between bones in a museum and bones inside your body?

  • Bones in a museum are smaller than bones inside the body
  • Bones in a museum are more flexible than bones inside the body
  • Bones in a museum are dry and crumbly, while bones inside the body are alive and can repair damage (correct)
  • Bones in a museum contain more calcium than bones inside the body

    • What mineral is prominently mentioned in relation to bones in the text?

  • Magnesium
  • Calcium (correct)
  • Iron
  • Zinc

    • How often does collagen in bones replenish itself according to the text?

    <p>Every 7 years</p> Signup and view all the answers

    Which part of the body has the most number of bones according to the text?

    <p>Hand</p> Signup and view all the answers

    What is the 'funny bone' in relation to the human body?

    <p>A nerve running inside the elbow</p> Signup and view all the answers

    What is a unique fact about skeletons of vertebrates mentioned in the text?

    <p>'Skeletons protect soft organs of vertebrates'</p> Signup and view all the answers

    What is the main function of the backbone in vertebrates?

    <p>Protect the spinal cord</p> Signup and view all the answers

    Which part of the skeleton protects an animal's vital organs such as the brain, heart, and lungs?

    <p>Ribcage</p> Signup and view all the answers

    What allows bones to rub together smoothly without causing pain?

    <p>Cartilage</p> Signup and view all the answers

    Why are skeletons described as forming a 'frame structure'?

    <p>To protect vital organs</p> Signup and view all the answers

    Which part of the skeleton surrounds softer parts of the face, such as the eyes?

    <p>Skull</p> Signup and view all the answers

    What is the function of girdles in vertebrates?

    <p>Protect soft organs</p> Signup and view all the answers

    Why are ribcages mentioned as an example of how the skeleton protects the body?

    <p>To protect important organs like the heart and lungs</p> Signup and view all the answers

    What is the primary role of girdles in vertebrate animals?

    <p>Protect soft organs</p> Signup and view all the answers

    What is the primary function of a skeleton?

    <p>To give the body shape and structure</p> Signup and view all the answers

    What mineral is abundant in bones as mentioned in the text?

    <p>Calcium</p> Signup and view all the answers

    Which part of the body has the highest number of bones according to the text?

    <p>Hand</p> Signup and view all the answers

    What happens to bones when they break according to the text?

    <p>They become stronger than before</p> Signup and view all the answers

    What is the purpose of collagen in bones?

    <p>To repair bone damage</p> Signup and view all the answers

    Why are bones described as being different when inside the body compared to outside as fossils?

    <p>They are alive and can grow and repair inside the body</p> Signup and view all the answers

    What does the skeleton protect according to the text?

    <p>Internal organs like heart and lungs</p> Signup and view all the answers

    What is the primary function of cartilage in joints?

    <p>To allow bones to rub together smoothly</p> Signup and view all the answers

    Why are girdles mentioned in relation to limbs in the text?

    <p>To serve as shock absorbers during movement</p> Signup and view all the answers

    What distinguishes the ribs of snakes from those of other animals according to the text?

    <p>They provide support for the whole body</p> Signup and view all the answers

    Why do vertebrae need to protect the spinal cord?

    <p>Because it sends signals from the brain to the body</p> Signup and view all the answers

    What is the significance of the tail in vertebrates according to the text?

    <p>It's where many animals' backbones end</p> Signup and view all the answers

    How do upper and lower limbs attach to the vertebrate body?

    <p>Upper limbs are attached to the body at the hip girdle and lower limbs at the shoulder girdle</p> Signup and view all the answers

    Which part of a vertebrate protects the brain and softer parts of the face such as eyes?

    <p>Skull</p> Signup and view all the answers

    Study Notes

    Functions of the Skeleton

    • Provides support and structure to the body.
    • Protects vital organs such as the brain, heart, and lungs.
    • Facilitates movement through attachment points for muscles.

    Bones in Different Contexts

    • Museum bones are often fossilized and lack biological processes, while living bones are active and incorporate nutrients and cells.

    Mineral Composition

    • Calcium phosphate is prominently mentioned as a critical mineral for bone strength.

    Collagen Replenishment

    • Collagen in bones replenishes itself continuously throughout a person's life.

    Number of Bones

    • The human hand has the highest number of bones, totaling 27 individual bones.

    Funny Bone

    • The 'funny bone' refers to the ulnar nerve, which can cause a tingling sensation when hit.

    Unique Fact about Vertebrate Skeletons

    • Skeletons of vertebrates show remarkable similarity despite species diversity, indicating a common evolutionary ancestor.

    Backbone Function

    • The backbone supports the body and protects the spinal cord, ensuring nerve signal transmission.

    Protective Parts of the Skeleton

    • The skull bones protect the brain and structure the face, while the ribcage safeguards the heart and lungs.

    Smooth Movement of Bones

    • Synovial fluid allows bones to rub together smoothly at joints, preventing friction and pain.

    Frame Structure of Skeletons

    • Skeletons form a 'frame structure' that maintains body shape and supports internal organs.

    Facial Skeleton

    • The facial skeleton includes bones that surround softer parts of the face, like the orbits around the eyes.

    Girdles in Vertebrates

    • Girdles provide attachment points for limbs, allowing for movement and support.

    Ribcage Functionality

    • Ribcages shield vital organs in the thoracic cavity, demonstrating how the skeleton offers protection.

    Primary Role of Girdles

    • Girdles primarily connect limbs to the axial skeleton and support body movement.

    Main Function of a Skeleton

    • The primary function of the skeleton is to support the body while protecting its vital components.

    Abundant Mineral in Bones

    • Calcium carbonate is also abundant in bones, contributing to their hardness.

    Impact of Bone Fractures

    • When bones break, healing processes start, including the reformation and regrowth of bone tissue.

    Purpose of Collagen

    • Collagen provides flexibility and tensile strength to bones, enhancing their durability.

    Distinction of Bones

    • Bones function differently inside the body compared to fossilized ones, which are static and lack biological activity.

    Skeleton Protection

    • The skeleton protects internal organs and supports bodily functions.

    Primary Function of Cartilage

    • Cartilage in joints serves to cushion and reduce friction between bones, allowing for smooth movement.

    Girdles and Limbs

    • Girdles are essential for the attachment of limbs, supporting their movement and function.

    Snake Rib Distinction

    • Snakes possess flexible rib structures that allow for significant expansion, in contrast to rigid ribs found in other animals.

    Protection of Spinal Cord

    • Vertebrae need to protect the spinal cord as it is crucial for communication between the brain and body.

    Significance of Tails in Vertebrates

    • Tails aid in balance, mobility, and communication, serving important roles in various vertebrate species.

    Limb Attachment

    • Upper and lower limbs attach to the vertebrate body via girdles, facilitating mobility.

    Brain and Facial Protection

    • The skull and facial bones together protect the brain and softer facial structures.

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    Description

    This quiz covers the three main functions of the skeleton: providing shape and structure, enabling movement, and protecting internal organs. It also explores the composition of bones, which may appear dead and dry but serve crucial roles in the body.

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