logging in or signing up The Skeletal System regan444 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 124 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: March 23, 2011 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... By: dennx (7 month(s) ago) aaaaaaaaa Saving..... Post Reply Close Saving..... Edit Comment Close By: dennx (7 month(s) ago) a Saving..... Post Reply Close Saving..... Edit Comment Close By: dennx (7 month(s) ago) nice presentation Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Human Biology: Human Biology The Skeletal SystemObjectives: Objectives Distinguish between the axial skeleton and the appendicular skeleton. Analyze the structure of bone. Summarize the process of bone development. List two ways to prevent osteoporosis. Identify the three main classes of joints. Recognize the bones of the body.The Skeleton: The Skeleton Axial Skeleton: 80 of the 206 individual bones of the human body including the skull, spinal vertebrae, ribs, and sternum. These bones form the central axis of the body. Appendicular Skeleton: The remaining 126 bones of the body that make up the arms and legs, pelvis, and shoulders. These bones form the appendages of the body.The Axial Skeleton: The Axial Skeleton The skull is made up of 29 bones, 8 of which form the cranium, 14 are facial bones, 6 are middle ear bones, and one forms the base of the tongue. There are also 26 vertebrae that form the spinal column which supports the entire body. These are connected to twelve pairs of ribs that protect the major organs.The Appendicular Skeleton: The Appendicular Skeleton The appendicular skeleton is made up of the bones that form the arms, legs, hands, feet, toes, fingers, shoulder blades, pelvis, and collar bones. The upper limbs are called the pectoral girdle. The lower limbs and supporting features are called the pelvic girdle.The Structure of Bone: The Structure of Bone Bones are made up of a hard outer covering of compact bone surrounding a porous inner core of spongy bone. Compact bone is dense and hard and provides a great deal of support and protection. Spongy bone is a loosely structured network of connective tissue. Pockets within the spongy bone may contain a soft tissue called bone marrow. Bone Marrow: The soft tissue within bone where various cells of the body are produced. Red Bone Marrow begins the production of Red Blood Cells and platelets. Yellow Bone Marrow consists mostly of fat which stores energy.Growth of Bones: Growth of Bones In early development the skeleton consists mainly of cartilage, a type of connective tissue that serves as a template of bone development. During growth, most cartilage is replaced by bone as calcium and phosphates are deposited. In compact bone, new bone cells are added around hollow channels called Haversian canals. New layers of bone form around the canals in concentric rings. These groups of columns give bones tremendous tensile strength. Bones tend to lengthen and thicken until all the cartilage is replaced, usually at the end of adolescence.Osteoporosis: Osteoporosis In young adults, the density of bone usually remains constant. Around age 35, bone replacement slows and becomes less efficient and some bone tissue is lost. Extreme bone loss can lead to a condition called osteoporosis which means porous bone. The bones are brittle and break easily. Men and women both lose bone at the same rate, however since men tend to start with more bone mass, their loss is not so noticeable. Leafy green vegetables and dairy products during adolescence coupled with plenty of exercise will help maintain bone density and prevent osteoporosis.Joints: Joints Joint: A place where two bones meet. Not all joints are mobile. The sutures of the skull are examples of immovable joints. The bones of a joint are held together by bands of strong connective tissue called ligaments. These bands stabilize the joint and prevent it from moving too far in any one direction.Three Groups of Joints: Three Groups of Joints Immovable Joints: Tight joints that permit little or no movement of the bones the join. The cranial or skull sutures are examples of these. They consist of the juncture between two bones and a thin band of connective tissue. Slightly Moveable Joints: Joints that permit a limited movement of the bones that connect. The vertebrae of the spine are examples of this type of joint. Freely Moveable Joints: Joints that permit free or nearly free movement. The direction of movement is determined by the type of joint.Types of Moveable Joints: Types of Moveable Joints You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
The Skeletal System regan444 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 124 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: March 23, 2011 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... By: dennx (7 month(s) ago) aaaaaaaaa Saving..... Post Reply Close Saving..... Edit Comment Close By: dennx (7 month(s) ago) a Saving..... Post Reply Close Saving..... Edit Comment Close By: dennx (7 month(s) ago) nice presentation Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Human Biology: Human Biology The Skeletal SystemObjectives: Objectives Distinguish between the axial skeleton and the appendicular skeleton. Analyze the structure of bone. Summarize the process of bone development. List two ways to prevent osteoporosis. Identify the three main classes of joints. Recognize the bones of the body.The Skeleton: The Skeleton Axial Skeleton: 80 of the 206 individual bones of the human body including the skull, spinal vertebrae, ribs, and sternum. These bones form the central axis of the body. Appendicular Skeleton: The remaining 126 bones of the body that make up the arms and legs, pelvis, and shoulders. These bones form the appendages of the body.The Axial Skeleton: The Axial Skeleton The skull is made up of 29 bones, 8 of which form the cranium, 14 are facial bones, 6 are middle ear bones, and one forms the base of the tongue. There are also 26 vertebrae that form the spinal column which supports the entire body. These are connected to twelve pairs of ribs that protect the major organs.The Appendicular Skeleton: The Appendicular Skeleton The appendicular skeleton is made up of the bones that form the arms, legs, hands, feet, toes, fingers, shoulder blades, pelvis, and collar bones. The upper limbs are called the pectoral girdle. The lower limbs and supporting features are called the pelvic girdle.The Structure of Bone: The Structure of Bone Bones are made up of a hard outer covering of compact bone surrounding a porous inner core of spongy bone. Compact bone is dense and hard and provides a great deal of support and protection. Spongy bone is a loosely structured network of connective tissue. Pockets within the spongy bone may contain a soft tissue called bone marrow. Bone Marrow: The soft tissue within bone where various cells of the body are produced. Red Bone Marrow begins the production of Red Blood Cells and platelets. Yellow Bone Marrow consists mostly of fat which stores energy.Growth of Bones: Growth of Bones In early development the skeleton consists mainly of cartilage, a type of connective tissue that serves as a template of bone development. During growth, most cartilage is replaced by bone as calcium and phosphates are deposited. In compact bone, new bone cells are added around hollow channels called Haversian canals. New layers of bone form around the canals in concentric rings. These groups of columns give bones tremendous tensile strength. Bones tend to lengthen and thicken until all the cartilage is replaced, usually at the end of adolescence.Osteoporosis: Osteoporosis In young adults, the density of bone usually remains constant. Around age 35, bone replacement slows and becomes less efficient and some bone tissue is lost. Extreme bone loss can lead to a condition called osteoporosis which means porous bone. The bones are brittle and break easily. Men and women both lose bone at the same rate, however since men tend to start with more bone mass, their loss is not so noticeable. Leafy green vegetables and dairy products during adolescence coupled with plenty of exercise will help maintain bone density and prevent osteoporosis.Joints: Joints Joint: A place where two bones meet. Not all joints are mobile. The sutures of the skull are examples of immovable joints. The bones of a joint are held together by bands of strong connective tissue called ligaments. These bands stabilize the joint and prevent it from moving too far in any one direction.Three Groups of Joints: Three Groups of Joints Immovable Joints: Tight joints that permit little or no movement of the bones the join. The cranial or skull sutures are examples of these. They consist of the juncture between two bones and a thin band of connective tissue. Slightly Moveable Joints: Joints that permit a limited movement of the bones that connect. The vertebrae of the spine are examples of this type of joint. Freely Moveable Joints: Joints that permit free or nearly free movement. The direction of movement is determined by the type of joint.Types of Moveable Joints: Types of Moveable Joints