Glencoe Health 2005.pdf

387 lesson 1 the skeletal system long bone humerus

Info icon This preview shows pages 400–403. Sign up to view the full content.

View Full Document Right Arrow Icon
387 Lesson 1 The Skeletal System Long bone (humerus) Short bone (wrist) Flat bone (rib) Bone tissue consists of living cells embedded in a hard matrix of calcium, phosphate, and other calcium minerals.
Image of page 400

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
388 Chapter 15 Skeletal, Muscular, and Nervous Systems T HE S KELETAL S YSTEM Your bones continue to grow both in length and in thickness until you are about 25 years old. At this age bones usually stop growing, but may continue to thicken. phalanges (toes) metatarsal bones (foot) calcaneus (heel) tarsal bones (ankle) fibula (long bone) tibia (long bone) patella (knee cap) femur (long bone) phalanges (fingers) metacarpal bones (hands) carpal bones (wrist) ulna radius humerus ribs (flat bones) sternum scapula (shoulder blade) clavicle (collar bone) mandible (jaw) temporal bones cheek bones nasal bone frontal bone parietal bone occipital bone ischium pubis coccyx sacrum ilium Pelvis lumbar vertebrae (lower back) thoracic vertebrae (upper back) cervical vertebrae (neck) axis (2nd vertebra) atlas (1st vertebra) Axial Skeleton Appendicular Skeleton (shoulders, arms, hips, legs)
Image of page 401
Applying Health Skills Decision Making. Hector’s friends have invited him to go mountain biking. He is hesitant because he thinks this activity would pose some risks to his bones or joints. Using the decision-making steps, role-play with a friend the process of Hector’s decision. Reviewing Facts and Vocabulary 1. What are the functions of the skeletal system? 2. Define the terms cartilage and ossification. 3. Name and give examples of each type of joint. Thinking Critically 4. Analyzing. The ligament that holds the bones in your forearm together and helps form the pivot joint there has been torn. How might this affect your ability to move your hand and arm? What movements might be affected? 5. Comparing and Contrasting. Recognize how knowledge of the skeletal system is important for maintaining personal health. How are the bones in the axial skeleton similar to those in the appendicular skeleton? W O R D P R O C E S S I N G Use a word- processing program to list options for Hector’s decision. See health.glencoe.com for tips. Lesson 1 The Skeletal System 389 Joints Joints are points at which bones meet. Some joints, such as those between the bones of the skull, do not move. Others, including the joints between vertebrae, have limited movement. More flexible joints are classified by type: Ball-and-socket joints are formed when the rounded head of one bone fits into the rounded cavity of an adjoining bone, as in a hip or shoulder joint. These joints allow the widest range of movement in all directions. Hinge joints, found at the elbow, knee, ankle, and fingers, allow a joint to bend and straighten, promoting rotation. Pivot joints allow limited rotation or turning of the head. Ellipsoidal joints, such as the one in your wrist, have an oval-shaped part that fits into a curved space. Gliding joints allow bones to slide over one another.
Image of page 402

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 403
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern