Questions and Answers
What is the term for the lower jaw?
Which bone is known as the upper arm bone?
What is the scientific term for the wrist bone?
Carpal
What is the name of the skull?
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What is the bone at the back of the head called?
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What is the name of the thigh bone?
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What is the term for the bones of the feet?
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Which vertebrae are located in the lower back?
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What type of bone makes up the outer layer of bones?
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What is the term for the softer, inner part of bones?
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What structure connects muscles to bones?
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What is the term for the expandable cartilage in growing bones?
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Which of the following is part of the pelvic girdle?
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What bone is referred to as the outer ankle bone?
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What is the function of red bone marrow?
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What is the term for the upper jaw bone?
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The axial skeleton includes the limbs.
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The scapula is also known as the shoulder blade.
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The calcaneus is known as the heel bone.
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Which of the following bones is found in the hand?
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Study Notes
Vertebrae
- Thoracic vertebrae are 12 individual bones in the middle of the back, supporting the rib cage and protecting thoracic organs.
- Lumbar vertebrae consist of 5 larger vertebrae at the lower back, crucial for weight-bearing and mobility.
Cranial Bones
- Parietal bones form the top and sides of the skull, contributing to cranial structure.
- Frontal bone makes up the forehead and part of the eye sockets, involved in facial structure and protection.
- Occipital bone forms the back of the skull, containing the foramen magnum for spinal cord passage.
- Temporal bones are located at the sides of the skull, housing the structures of the inner and middle ear.
Facial Bones
- Zygomatic bones form the cheeks, providing structure and protecting the eye sockets.
- Mandible is the lower jawbone, the only movable bone in the skull, crucial for chewing.
- Maxilla is the upper jawbone, forming the central part of the face and supporting teeth.
- Nasal bones are two small bones forming the bridge of the nose.
- Vomer is a single bone forming the lower part of the nasal septum.
Upper Limbs
- Humerus is the long bone of the upper arm, connecting with the shoulder and elbow.
- Ulna is the longer bone of the forearm located on the inner side, opposite the thumb.
- Radius is the shorter bone of the forearm on the outer side, allowing for rotational movement.
Hands
- Carpals are the wrist bones, consisting of eight bones that allow wrist mobility.
- Metacarpals are the five bones forming the middle part of the hand.
- Phalanges are the bones of the fingers, with three in each finger and two in the thumb.
Lower Limbs
- Patella is the kneecap, protecting the knee joint and aiding in leg movement.
- Tarsals are the seven bones that make up the ankle, providing stability.
- Metatarsals are five long bones in the foot, essential for weight-bearing and balance.
- Phalanges in the toes consist of two for each big toe and three for the rest.
Pelvis and Spine
- Cranium encases the brain, protecting it from injury.
- Scapula is the shoulder blade, connecting arms to the torso.
- Pelvic girdle supports the weight of the upper body and protects organs in the pelvic cavity.
- Tibia is the shinbone, larger than the fibula, and supports most of the weight of the lower leg.
- Fibula is the thinner bone of the lower leg, providing lateral stability.
Bone Structure
- Calcaneus is the heel bone, supporting weight during walking and running.
- Epiphysis refers to the ends of long bones, involved in joint formation.
- Diaphysis is the long, tubular shaft of a long bone, providing structural support.
- Compact bone is dense and forms the outer layer of bones, providing strength.
- Spongy bone is lighter and contains spaces, found in the interior of bones.
- Red bone marrow is responsible for blood cell production found within certain bones.
- Epiphyseal plate is the growth plate in children, enabling bone lengthening.
Skeleton Types
- Axial skeleton includes the bones of the skull, vertebral column, and rib cage, crucial for protection and support.
- Appendicular skeleton consists of the limbs and girdles, facilitating movement and interaction with the environment.
- Periosteum is the dense layer of vascular connective tissue enveloping bones, essential for growth and repair.
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Description
Test your knowledge of the human skeletal system with this labeling diagram quiz. Learn and identify various bones such as the thoracic and lumbar vertebrae, as well as cranial bones like the parietal and frontal. Perfect for anatomy students and enthusiasts alike.
