Podcast
Questions and Answers
Which bones make up the pectoral girdle?
Which bones make up the pectoral girdle?
What is the function of the cranium?
What is the function of the cranium?
Which bones are part of the lower limb?
Which bones are part of the lower limb?
Which bone is NOT part of the axial skeleton?
Which bone is NOT part of the axial skeleton?
Signup and view all the answers
Which of these bone groups is part of the upper limb?
Which of these bone groups is part of the upper limb?
Signup and view all the answers
Which bone of the forearm is on the lateral side of the body in anatomical position?
Which bone of the forearm is on the lateral side of the body in anatomical position?
Signup and view all the answers
Which structure on the ulna articulates with the humerus at the elbow joint?
Which structure on the ulna articulates with the humerus at the elbow joint?
Signup and view all the answers
The radial groove is a feature of which bone?
The radial groove is a feature of which bone?
Signup and view all the answers
Which bone of the forearm articulates with the capitulum of the humerus?
Which bone of the forearm articulates with the capitulum of the humerus?
Signup and view all the answers
What is the name of the bony projection on the ulna that forms the point of your elbow?
What is the name of the bony projection on the ulna that forms the point of your elbow?
Signup and view all the answers
Which of the following is NOT a bone of the pectoral girdle?
Which of the following is NOT a bone of the pectoral girdle?
Signup and view all the answers
What is the correct description of the clavicle?
What is the correct description of the clavicle?
Signup and view all the answers
What part of the vertebra is located closest to the skull?
What part of the vertebra is located closest to the skull?
Signup and view all the answers
Which type of rib directly attaches to the sternum?
Which type of rib directly attaches to the sternum?
Signup and view all the answers
What is the function of the pelvic girdle?
What is the function of the pelvic girdle?
Signup and view all the answers
Which bone forms the anterior part of the shoulder girdle?
Which bone forms the anterior part of the shoulder girdle?
Signup and view all the answers
Which of the following is NOT a bone found in the upper limb?
Which of the following is NOT a bone found in the upper limb?
Signup and view all the answers
What is the function of the costal cartilage?
What is the function of the costal cartilage?
Signup and view all the answers
What is the main function of the scapula?
What is the main function of the scapula?
Signup and view all the answers
What feature of the scapula allows for the attachment of muscles?
What feature of the scapula allows for the attachment of muscles?
Signup and view all the answers
Which bone articulates with the scapula to form the acromioclavicular joint?
Which bone articulates with the scapula to form the acromioclavicular joint?
Signup and view all the answers
What is the function of the coracoid process?
What is the function of the coracoid process?
Signup and view all the answers
What is the name given to the shallow socket on the scapula where the humerus fits?
What is the name given to the shallow socket on the scapula where the humerus fits?
Signup and view all the answers
Which of the following bones is not part of the pectoral girdle?
Which of the following bones is not part of the pectoral girdle?
Signup and view all the answers
What is the name of the bony prominence on the posterior surface of the scapula?
What is the name of the bony prominence on the posterior surface of the scapula?
Signup and view all the answers
Which of the following statements about the clavicle is correct?
Which of the following statements about the clavicle is correct?
Signup and view all the answers
Which of these features are characteristic of the female pelvis?
Which of these features are characteristic of the female pelvis?
Signup and view all the answers
What is the most prominent feature of the hip bone?
What is the most prominent feature of the hip bone?
Signup and view all the answers
What is the joint that connects the two hip bones anteriorly at the midline?
What is the joint that connects the two hip bones anteriorly at the midline?
Signup and view all the answers
Which bone forms the posterior part of the pelvic girdle?
Which bone forms the posterior part of the pelvic girdle?
Signup and view all the answers
Which of these features is NOT found on the lateral surface of the ilium?
Which of these features is NOT found on the lateral surface of the ilium?
Signup and view all the answers
What is the name of the structure that covers the inner shaft of a long bone?
What is the name of the structure that covers the inner shaft of a long bone?
Signup and view all the answers
Which type of cell is responsible for breaking down bone matrix?
Which type of cell is responsible for breaking down bone matrix?
Signup and view all the answers
During the second phase of ossification, what happens to the hyaline cartilage?
During the second phase of ossification, what happens to the hyaline cartilage?
Signup and view all the answers
What is the name of the small canals that radiate outward from the central canal in an osteon?
What is the name of the small canals that radiate outward from the central canal in an osteon?
Signup and view all the answers
What is the main function of Volkmann's canals?
What is the main function of Volkmann's canals?
Signup and view all the answers
Which of the following is NOT a phase of bone healing?
Which of the following is NOT a phase of bone healing?
Signup and view all the answers
What is the primary function of articular cartilage?
What is the primary function of articular cartilage?
Signup and view all the answers
Where is red marrow found in adults?
Where is red marrow found in adults?
Signup and view all the answers
What is the role of osteoblasts in bone remodeling?
What is the role of osteoblasts in bone remodeling?
Signup and view all the answers
Which hormone is released when the body senses a decrease in blood calcium levels?
Which hormone is released when the body senses a decrease in blood calcium levels?
Signup and view all the answers
What is the primary difference between an open and closed fracture?
What is the primary difference between an open and closed fracture?
Signup and view all the answers
What is the name of the structure that forms a splint to hold the ends of a broken bone together during the healing process?
What is the name of the structure that forms a splint to hold the ends of a broken bone together during the healing process?
Signup and view all the answers
What is the role of phagocytes in bone healing?
What is the role of phagocytes in bone healing?
Signup and view all the answers
Which of the following is NOT a function of the axial skeleton?
Which of the following is NOT a function of the axial skeleton?
Signup and view all the answers
Which of the following is an example of a bone that is NOT part of the axial skeleton?
Which of the following is an example of a bone that is NOT part of the axial skeleton?
Signup and view all the answers
Which of the following statements is TRUE about the epiphyseal plate?
Which of the following statements is TRUE about the epiphyseal plate?
Signup and view all the answers
Flashcards
Cranium
Cranium
The part of the skull that encloses the brain.
Vertebral Column
Vertebral Column
The spine, composed of vertebrae, supporting the body.
Bony Thorax
Bony Thorax
The rib cage formed by ribs and sternum protecting thoracic organs.
Pectoral Girdle
Pectoral Girdle
Signup and view all the flashcards
Pelvic Girdle
Pelvic Girdle
Signup and view all the flashcards
Thoracic Vertebrae
Thoracic Vertebrae
Signup and view all the flashcards
True Ribs
True Ribs
Signup and view all the flashcards
False Ribs
False Ribs
Signup and view all the flashcards
Floating Ribs
Floating Ribs
Signup and view all the flashcards
Sternum
Sternum
Signup and view all the flashcards
Clavicle
Clavicle
Signup and view all the flashcards
Ulna
Ulna
Signup and view all the flashcards
Radius
Radius
Signup and view all the flashcards
Coronoid process
Coronoid process
Signup and view all the flashcards
Olecranon
Olecranon
Signup and view all the flashcards
Trochlear notch
Trochlear notch
Signup and view all the flashcards
Iliac Crest
Iliac Crest
Signup and view all the flashcards
Acetabulum
Acetabulum
Signup and view all the flashcards
Pubic Arch
Pubic Arch
Signup and view all the flashcards
Greater Sciatic Notch
Greater Sciatic Notch
Signup and view all the flashcards
Ischial Spine
Ischial Spine
Signup and view all the flashcards
Scapula
Scapula
Signup and view all the flashcards
Shoulder Girdle
Shoulder Girdle
Signup and view all the flashcards
Acromioclavicular Joint
Acromioclavicular Joint
Signup and view all the flashcards
Glenoid Cavity
Glenoid Cavity
Signup and view all the flashcards
Acromion
Acromion
Signup and view all the flashcards
Suprascapular Notch
Suprascapular Notch
Signup and view all the flashcards
Epiphysis
Epiphysis
Signup and view all the flashcards
Articular Cartilage
Articular Cartilage
Signup and view all the flashcards
Epiphyseal Line
Epiphyseal Line
Signup and view all the flashcards
Periosteum
Periosteum
Signup and view all the flashcards
Medullary Cavity
Medullary Cavity
Signup and view all the flashcards
Ossification
Ossification
Signup and view all the flashcards
Osteoblasts
Osteoblasts
Signup and view all the flashcards
Osteoclasts
Osteoclasts
Signup and view all the flashcards
Haversian Canal
Haversian Canal
Signup and view all the flashcards
Canaliculi
Canaliculi
Signup and view all the flashcards
Bone Remodeling
Bone Remodeling
Signup and view all the flashcards
Hematoma
Hematoma
Signup and view all the flashcards
Fibrocartilage Callus
Fibrocartilage Callus
Signup and view all the flashcards
Bony Callus
Bony Callus
Signup and view all the flashcards
Axial Skeleton
Axial Skeleton
Signup and view all the flashcards
Study Notes
Skeletal System Overview
- The skeletal system is divided into two main parts: the axial skeleton and the appendicular skeleton
- The axial skeleton forms the longitudinal axis of the body and includes the skull, vertebral column, and bony thorax
- The appendicular skeleton includes the limbs (appendages) and the pectoral and pelvic girdles
- The adult human skeleton consists of 206 bones
Skull
- Two sets of bones make up the skull: the cranium and facial bones
- The cranium protects the brain
- Facial bones hold the eyes in place and allow for facial expressions
- Skull bones are joined by sutures (immovable joints)
- The mandible (jawbone) is the only freely movable skull bone
Cranial Bones
- 8 cranial bones
- Frontal bone
- Occipital bone
- 2 Parietal bones
- 2 Temporal bones
- Ethmoid bone
- Sphenoid bone
Facial Bones
- 14 facial bones
- 2 Maxillae
- 2 Palatine bones
- 2 Lacrimal bones
- 2 Zygomatic bones
- 2 Nasal bones
- Vomer bone
- 2 Inferior nasal conchae
- Mandible
Skull Features
- Suture lines join skull bones
- Paranasal sinuses are air-filled cavities within bones that lighten the skull and amplify sounds
Hyoid Bone
- A U-shaped bone in the neck, not directly connected to another bone
- Supports the tongue
- Important for swallowing and speech
Vertebral Column
- Also known as the spine
- Provides axial support that extends from the skull to the pelvis
- Consists of 26 vertebrae separated by intervertebral discs
- Regions include:
- 7 cervical vertebrae (neck)
- 12 thoracic vertebrae (chest)
- 5 lumbar vertebrae (lower back)
- Sacrum (formed from 5 fused vertebrae)
- Coccyx (formed from 3-5 fused vertebrae)
Vertebral Column Curvatures
- Primary curvatures (thoracic and sacral regions) are present at birth
- Secondary curvatures (cervical and lumbar regions) develop after birth
Vertebral Structure
- Parts of a typical vertebra include the body, vertebral arch, pedicles, laminae, vertebral foramen, transverse processes, spinous process, and superior and inferior articular processes.
Thoracic Cage
- Protects organs in the thoracic cavity
- Composed of the sternum, ribs, and thoracic vertebrae
Ribs Structure
- True ribs (pairs 1-7), attached directly to sternum
- False ribs (pairs 8-10), attached to cartilage of the 7th rib
- Floating ribs (pairs 11-12), no anterior attachment
Bones of the Appendicular Skeleton
- 126 bones
- Limbs (appendages)
- Pectoral girdle
- Pelvic girdle
Pectoral Girdle
- Composed of the clavicle and scapula
- Provides upper limb attachment to the axial skeleton
- Light, flexible construction allows exceptional mobility
Upper Limbs
- Humerus (arm bone) has proximal and distal articulation points
- Ulna and radius (forearm bones) are both articulate with the humerus.
- Carpals, metacarpals, and phalanges comprise the hand
Pelvic Girdle
- Formed from the fusion of the ilium, ischium, and pubis
- Supports the weight of the upper body
- Protects reproductive organs, bladder, and portion of the large intestine;
- The inlet and outlet of the pelvis differs between the sexes
Lower Limbs
- Femur (thigh bone)
- Tibia and fibula (leg bones)
- Tarsals, metatarsals, and phalanges (foot bones)
Bone Remodeling
- Bones are constantly changing in response to internal and external factors.
- Bone remodeling involves the breakdown of old bone tissue (by osteoclasts) and the formation of new bone tissue (by osteoblasts)
- This process is crucial for maintaining bone integrity and strength
- Also critical for bone repair after a fracture
Bone Fracture
- A fracture occurs when the force applied to a bone exceeds its strength
- Classified as "open" or "closed" depending on whether the broken bone extends through the skin
- Treatment involves reduction (realignment) of bone ends
Fracture Healing
- Bone healing occurs in 4 phases
- Hematoma formation
- Fibrocartilage callus formation
- Bony callus formation
- Bone remodeling
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Test your knowledge on the human skeletal system with this quiz. It covers various components, including the pectoral girdle, lower limb bones, and their functions. Perfect for students of anatomy or anyone interested in human biology.