Skeletal System Overview and Structure

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Questions and Answers

What is the main function of the periosteum?

Protects the bone from infections

Covers the bone and serves as an attachment point for tendons and ligaments (correct)

Stores fat within the bone

Supports the epiphysis

Which type of bone is primarily characterized by being longer than wide?

Long Bones (correct)

Flat Bones

Short Bones

Irregular Bones

What is the epiphyseal plate responsible for in growing bones?

Bone density regulation

Bone reabsorption

Site of bone growth (correct)

Formation of sesamoid bones

Which type of bone is known for providing lightness and houses marrow?

Cancellous Bone Signup and view all the answers

Which of the following is a distinctive feature of sesamoid bones?

They are located within tendons Signup and view all the answers

What structure is located in the medullary canal?

Bone marrow Signup and view all the answers

What term describes the rounded knuckle-like projections of a bone that fit into joints?

Condyle Signup and view all the answers

Which of the following is NOT a feature of flat bones?

Hollow center for marrow storage Signup and view all the answers

Match the following types of bones with their examples:

Long Bones = Femur Short Bones = Wrist Flat Bones = Scapula Irregular Bones = Vertebra Signup and view all the answers

Match the following skeletal components with their descriptions:

Diaphysis = Main shaft mostly composed of compact bone Epiphysis = End part of a long bone that is wider than the shaft Metaphysis = Flared part between epiphysis and diaphysis Endosteum = Membrane lining the medullary canal Signup and view all the answers

Match the following bone markings with their definitions:

Foramen = Hole in a bone Fossa = Hollow area or depression Meatus = Canal or tube-like opening Sinus = Air-filled cavity within a bone Signup and view all the answers

Match the following components of bone composition with their proportions:

Organic Component = $\frac{1}{3}$ Elasticity Inorganic Component = $\frac{2}{3}$ Strength and hardness Compact Bone = Dense outer shell Cancellous Bone = Porous and spongy interior Signup and view all the answers

Match the following types of skeletons with their characteristics:

Axial Skeleton = 80 Bones including head and spine Appendicular Skeleton = 126 Bones including limbs and girdles Sesamoid Bones = Located in tendons to protect from wear Cancellous Bone = Fills the interior of bones, makes them lighter Signup and view all the answers

Match the following terms associated with bone growth to their descriptions:

Epiphyseal Plate = Site of bone growth in growing bones Osteoclasts = Cells responsible for bone reabsorption Cartilaginous Bone = Characteristic of growing bone before it becomes ossified Medullary Canal = Hollow center of the diaphysis Signup and view all the answers

Match the following projections or processes with their functions:

Condyle = Rounded projection that fits into joints Trochanter = Large prominence for muscle attachment Crest = Sharp ridge or border on a bone Epicondyle = Prominence above or on condyle Signup and view all the answers

Match the following bone types with their characteristics:

Long Bones = Have greater length than width Short Bones = Equal dimensions with many articular surfaces Flat Bones = Broad and thin with two layers of cancellous bone Irregular Bones = Non-uniform shape encased in compact bone Signup and view all the answers