Everyday Science MCQs

Skeletal System and Bones MCQs with Answers

Which of the following is the hardest substance in the human body?
a) Enamel
b) Dentin
c) Bone
d) Cartilage
Answer: a) Enamel

What is the primary mineral component of bones?
a) Calcium
b) Iron
c) Magnesium
d) Sodium
Answer: a) Calcium

How many bones are there in the adult human body?
a) 206
b) 208
c) 210
d) 212
Answer: a) 206

Which of the following bones is located in the upper arm?
a) Humerus
b) Femur
c) Tibia
d) Radius
Answer: a) Humerus

What is the purpose of the skeletal system?
a) Protection
b) Support
c) Movement
d) All of the above
Answer: d) All of the above

Which bone protects the brain?
a) Skull
b) Spine
c) Sternum
d) Ribs
Answer: a) Skull

What is the longest bone in the human body?
a) Femur
b) Humerus
c) Tibia
d) Radius
Answer: a) Femur

Which of the following is not a type of bone tissue?
a) Compact bone
b) Spongy bone
c) Cortical bone
d) Medullary bone
Answer: d) Medullary bone

What is the function of red bone marrow?
a) Energy storage
b) Muscle attachment
c) Blood cell production
d) Protection of organs
Answer: c) Blood cell production

Which bone forms the shoulder joint?
a) Scapula
b) Clavicle
c) Humerus
d) Sternum
Answer: a) Scapula

Which bone is commonly referred to as the kneecap?
a) Patella
b) Tibia
c) Fibula
d) Calcaneus
Answer: a) Patella

What is the function of yellow bone marrow?
a) Blood cell production
b) Energy storage
c) Muscle attachment
d) Protection of organs
Answer: b) Energy storage

Which of the following bones is not part of the axial skeleton?
a) Skull
b) Spine
c) Clavicle
d) Sternum
Answer: c) Clavicle

What is the purpose of cartilage in the skeletal system?
a) To provide flexibility and support
b) To protect bones from damage
c) To facilitate bone growth
d) To store minerals
Answer: a) To provide flexibility and support

Which bone is located in the forearm and is responsible for rotation of the hand?
a) Radius
b) Ulna
c) Carpals
d) Metacarpals
Answer: b) Ulna

What is the function of the rib cage?
a) Protect the heart and lungs
b) Provide support for the spine
c) Aid in breathing
d) All of the above
Answer: d) All of the above

Which bone is commonly known as the collarbone?
a) Clavicle
b) Scapula
c) Sternum
d) Humerus
Answer: a) Clavicle

Which bones make up the forearm?
a) Radius and ulna
b) Femur and tibia
c) Tibia and fibula
d) Carpals and metacarpals
Answer: a) Radius and ulna

What is the function of the vertebral column?
a) Protect the spinal cord
b) Provide support and flexibility
c) Anchor muscles
d) All of the above
Answer: d) All of the above

Which bone is commonly known as the shinbone?
a) Tibia
b) Fibula
c) Patella
d) Calcaneus
Answer: a) Tibia

What is the function of the hyoid bone?
a) Protect the brain
b) Provide support for the tongue and larynx
c) Anchor muscles of the face
d) Support the spinal column
Answer: b) Provide support for the tongue and larynx

Which of the following bones is not part of the vertebral column?
a) Atlas
b) Axis
c) Sacrum
d) Sternum
Answer: d) Sternum

What is the function of the scapula?
a) Protect the heart and lungs
b) Anchor muscles of the upper arm
c) Provide support for the head
d) Aid in digestion
Answer: b) Anchor muscles of the upper arm

Which bone forms the heel of the foot?
a) Calcaneus
b) Talus
c) Metatarsals
d) Phalanges
Answer: a) Calcaneus

What is the function of the cranial bones?
a) Protect the brain
b) Provide support for the face
c) Aid in chewing and biting
d) Facilitate vision and hearing
Answer: a) Protect the brain

Which of the following bones is not part of the pelvic girdle?
a) Sacrum
b) Coccyx
c) Femur
d) Ilium
Answer: c) Femur

What is the function of the patella?
a) Protect the knee joint
b) Provide support for the foot
c) Anchor muscles of the lower leg
d) Aid in balance and coordination
Answer: a) Protect the knee joint

Which bone is commonly known as the tailbone?
a) Sacrum
b) Coccyx
c) Scapula
d) Sternum
Answer: b) Coccyx

What is the function of the phalanges?
a) Provide support for the fingers and toes
b) Anchor muscles of the hand and foot
c) Facilitate movement and dexterity
d) All of the above
Answer: d) All of the above

Which bone is located in the lower leg and is responsible for weight-bearing?
a) Tibia
b) Fibula
c) Patella
d) Calcaneus
Answer: a) Tibia

What is the function of the carpals?
a) Protect the wrist joint
b) Provide support for the hand
c) Aid in fine motor movements
d) All of the above
Answer: d) All of the above

Which of the following bones is not part of the appendicular skeleton?
a) Humerus
b) Femur
c) Sternum
d) Radius
Answer: c) Sternum

Which of the following is not a function of the skeletal system?
a) Protection
b) Movement
c) Digestion
d) Blood cell production
Answer: c) Digestion

What is the largest bone in the human body?
a) Femur
b) Humerus
c) Tibia
d) Radius
Answer: a) Femur

What is the scientific term for the collarbone?
a) Clavicle
b) Scapula
c) Sternum
d) Fibula
Answer: a) Clavicle

How many bones are there in the human body?
a) 206
b) 216
c) 226
d) 236
Answer: a) 206

Which type of bone cell is responsible for bone formation?
a) Osteoblast
b) Osteoclast
c) Osteocyte
d) Osteoporosis
Answer: a) Osteoblast

Which bone protects the brain?
a) Skull
b) Rib
c) Spine
d) Sternum
Answer: a) Skull

What is the purpose of synovial fluid in joints?
a) Lubrication
b) Support
c) Protection
d) Blood cell production
Answer: a) Lubrication

Which bone is commonly referred to as the kneecap?
a) Patella
b) Tibia
c) Fibula
d) Femur
Answer: a) Patella

Which of the following is a long bone in the human body?
a) Vertebra
b) Carpals
c) Femur
d) Sternum
Answer: c) Femur

What is the purpose of the skeletal system?
a) Provides structural support
b) Produces hormones
c) Regulates body temperature
d) Filters waste products
Answer: a) Provides structural support

Which bone is commonly known as the “shoulder blade”?
a) Clavicle
b) Scapula
c) Radius
d) Ulna
Answer: b) Scapula

What is the function of red bone marrow?
a) Blood cell production
b) Fat storage
c) Mineral storage
d) Joint lubrication
Answer: a) Blood cell production

Which bone is responsible for forming the bridge of the nose?
a) Maxilla
b) Mandible
c) Zygomatic bone
d) Nasal bone
Answer: d) Nasal bone

What is the purpose of the rib cage?
a) Protects the heart and lungs
b) Supports the head
c) Provides attachment points for muscles
d) Helps with digestion
Answer: a) Protects the heart and lungs

Which bone is commonly known as the “shinbone”?
a) Femur
b) Patella
c) Tibia
d) Fibula
Answer: c) Tibia

What is the scientific term for the thigh bone?
a) Humerus
b) Radius
c) Femur
d) Ulna
Answer: c) Femur

What is the function of yellow bone marrow?
a) Fat storage
b) Blood cell production
c) Mineral storage
d) Joint lubrication
Answer: a) Fat storage

Which bone is commonly known as the “tailbone”?
a) Coccyx
b) Sacrum
c) Sternum
d) Scapula
Answer: a) Coccyx

What is the purpose of cartilage in the skeletal system?
a) Provides cushioning and reduces friction between bones
b) Produces red blood cells
c) Stores minerals such as calcium and phosphorus
d) Transports oxygen and nutrients to the bone cells
Answer: a) Provides cushioning and reduces friction between bones

Which bone is commonly known as the “breastbone”?
a) Clavicle
b) Scapula
c) Sternum
d) Radius
Answer: c) Sternum

What is the purpose of the vertebral column?
a) Protects the spinal cord
b) Supports the weight of the body
c) Provides attachment points for muscles
d) All of the above
Answer: d) All of the above

Which bone forms the upper jaw in humans?
a) Maxilla
b) Mandible
c) Zygomatic bone
d) Nasal bone
Answer: a) Maxilla

What is the function of the ulna bone?
a) Forms the forearm along with the radius
b) Supports the weight of the body
c) Protects the spinal cord
d) None of the above
Answer: a) Forms the forearm along with the radius

Which bone is commonly known as the “wrist bone”?
a) Carpals
b) Metacarpals
c) Phalanges
d) Radius
Answer: a) Carpals

What is the purpose of the pelvic girdle?
a) Supports the weight of the upper body
b) Protects the organs in the abdominal cavity
c) Provides attachment points for muscles
d) All of the above
Answer: d) All of the above

Which bone is commonly known as the “ankle bone”?
a) Talus
b) Calcaneus
c) Metatarsals
d) Phalanges
Answer: a) Talus

What is the function of the radius bone?
a) Forms the forearm along with the ulna
b) Supports the weight of the body
c) Protects the spinal cord
d) None of the above
Answer: a) Forms the forearm along with the ulna

Which bone is commonly known as the “heel bone”?
a) Talus
b) Calcaneus
c) Metatarsals
d) Phalanges
Answer: b) Calcaneus

What is the purpose of the cranium?
a) Protects the brain
b) Supports the weight of the body
c) Provides attachment points for muscles
d) All of the above
Answer: a) Protects the brain

Which bone is commonly known as the “finger bone”?
a) Carpals
b) Metacarpals
c) Phalanges
d) Radius
Answer: c) Phalanges

What is the function of the scapula bone?
a) Forms the upper arm along with the humerus
b) Supports the weight of the body
c) Protects the spinal cord
d) None of the above
Answer: d) None of the above

Which bone is commonly known as the “thigh bone”?
a) Femur
b) Patella
c) Tibia
d) Fibula
Answer: a) Femur

What is the purpose of the phalanges?
a) Form the fingers and toes
b) Support the weight of the body
c) Protect the organs in the abdominal cavity
d) Provide attachment points for muscles
Answer: a) Form the fingers and toes

Which bone is commonly known as the “elbow bone”?
a) Humerus
b) Ulna
c) Radius
d) Phalanges
Answer: b) Ulna

What is the purpose of the patella bone?
a) Protects the knee joint
b) Supports the weight of the body
c) Forms the forearm along with the radius
d) None of the above
Answer: a) Protects the knee joint

Which bone is commonly known as the “forearm bone”?
a) Humerus
b) Ulna
c) Radius
d) Phalanges
Answer: c) Radius

What is the function of the metatarsals?
a) Form the bones of the foot
b) Support the weight of the body
c) Protect the organs in the abdominal cavity
d) Provide attachment points for muscles
Answer: a) Form the bones of the foot

Which bone is commonly known as the “thighbone”?
a) Humerus
b) Femur
c) Tibia
d) Ulna
Answer: b) Femur

What is the purpose of the sternum?
a) Protects the heart and lungs
b) Supports the weight of the body
c) Provides attachment points for muscles
d) All of the above
Answer: a) Protects the heart and lungs

Which bone is commonly known as the “spine”?
a) Vertebra
b) Scapula
c) Sternum
d) Femur
Answer: a) Vertebra

What is the function of the humerus bone?
a) Forms the upper arm along with the scapula
b) Supports the weight of the body
c) Protects the spinal cord
d) None of the above
Answer: a) Forms the upper arm along with the scapula

Which bone is commonly known as the “skull”?
a) Clavicle
b) Scapula
c) Skull
d) Sternum
Answer: c) Skull

What is the purpose of the fibula bone?
a) Forms the lower leg along with the tibia
b) Supports the weight of the body
c) Protects the spinal cord
d) None of the above
Answer: a) Forms the lower leg along with the tibia

Which bone is commonly known as the “cheekbone”?
a) Maxilla
b) Mandible
c) Zygomatic bone
d) Nasal bone
Answer: c) Zygomatic bone

What is the purpose of the tarsal bones?
a) Form the bones of the ankle and foot
b) Support the weight of the body
c) Protect the organs in the abdominal cavity
d) Provide attachment points for muscles
Answer: a) Form the bones of the ankle and foot

Which bone is commonly known as the “lower jawbone”?
a) Maxilla
b) Mandible
c) Zygomatic bone
d) Nasal bone
Answer: b) Mandible

What is the function of the metacarpals?
a) Form the bones of the hand
b) Support the weight of the body
c) Protect the organs in the abdominal cavity
d) Provide attachment points for muscles
Answer: a) Form the bones of the hand

Which bone is commonly known as the “upper arm bone”?
a) Humerus
b) Ulna
c) Radius
d) Phalanges
Answer: a) Humerus

What is the purpose of the coccyx bone?
a) Provides attachment points for muscles
b) Supports the weight of the upper body
c) Forms the tailbone
d) Protects the spinal cord
Answer: c) Forms the tailbone

Which bone is commonly known as the “collarbone”?
a) Clavicle
b) Scapula
c) Sternum
d) Fibula
Answer: a) Clavicle

What is the function of the carpals?
a) Form the bones of the wrist
b) Support the weight of the body
c) Protect the organs in the abdominal cavity
d) Provide attachment points for muscles
Answer: a) Form the bones of the wrist

Which bone is commonly known as the “shoulder blade”?
a) Clavicle
b) Scapula
c) Radius
d) Ulna
Answer: b) Scapula

What is the purpose of the metatarsals?
a) Form the bones of the foot
b) Support the weight of the body
c) Protect the organs in the abdominal cavity
d) Provide attachment points for muscles
Answer: a) Form the bones of the foot

Which bone is commonly known as the “forehead bone”?
a) Maxilla
b) Mandible
c) Frontal bone
d) Nasal bone
Answer: c) Frontal bone

What is the function of the pelvic girdle?
a) Supports the weight of the upper body
b) Protects the organs in the abdominal cavity
c) Provides attachment points for muscles
d) All of the above
Answer: d) All of the above

Which bone is commonly known as the “nose bone”?
a) Maxilla
b) Mandible
c) Zygomatic bone
d) Nasal bone
Answer: d) Nasal bone

What is the purpose of the metacarpals?
a) Form the bones of the hand
b) Support the weight of the body
c) Protect the organs in the abdominal cavity
d) Provide attachment points for muscles
Answer: a) Form the bones of the hand

Which bone is commonly known as the “elbow bone”?
a) Humerus
b) Ulna
c) Radius
d) Phalanges
Answer: b) Ulna

What is the function of the calcaneus bone?
a) Forms the heel
b) Supports the weight of the body
c) Protects the spinal cord
d) None of the above
Answer: a) Forms the heel

Which bone is commonly known as the “cheekbone”?
a) Maxilla
b) Mandible
c) Zygomatic bone
d) Nasal bone
Answer: c) Zygomatic bone

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