Skeletal System: Anatomy And Physiology Trivia

1. How many bones does the average fully grown adult have?

300

296

283

206

The average fully grown adult has 206 bones. This is because as we grow from infancy to adulthood, some of our bones fuse together. At birth, we have around 300 bones, but as we age, these bones gradually fuse, resulting in a decrease in the total number of bones.

Explanation

The average fully grown adult has 206 bones. This is because as we grow from infancy to adulthood, some of our bones fuse together. At birth, we have around 300 bones, but as we age, these bones gradually fuse, resulting in a decrease in the total number of bones.

2. What is the longest bone in the human body?

Tibia

Femur

Ulna

Illium

The femur is the longest bone in the human body. It is located in the thigh and extends from the hip to the knee. The length of the femur allows for stability and support, as well as the ability to withstand the forces exerted on it during activities such as walking, running, and jumping. Its length also provides leverage for the muscles that attach to it, allowing for efficient movement.

Explanation

The femur is the longest bone in the human body. It is located in the thigh and extends from the hip to the knee. The length of the femur allows for stability and support, as well as the ability to withstand the forces exerted on it during activities such as walking, running, and jumping. Its length also provides leverage for the muscles that attach to it, allowing for efficient movement.

3. What is the bone the arrow points to?

Scapula

Fibula

Humerus

Radius

The arrow in the question is pointing to a bone, and the correct answer is "Humerus." The humerus is the bone located in the upper arm, between the shoulder and the elbow. It is the longest and largest bone in the upper limb, and it connects the scapula (shoulder blade) to the radius and ulna in the forearm.

Explanation

The arrow in the question is pointing to a bone, and the correct answer is "Humerus." The humerus is the bone located in the upper arm, between the shoulder and the elbow. It is the longest and largest bone in the upper limb, and it connects the scapula (shoulder blade) to the radius and ulna in the forearm.

4. A ________ joint exists in the elbow.

Ball and Socket

Gliding

Epsiloid

Hinge

A hinge joint exists in the elbow because it allows for movement in only one plane, similar to a door hinge. This type of joint allows for flexion and extension, but restricts other types of movement such as rotation or side-to-side motion. The elbow joint acts like a hinge, allowing the forearm to bend and straighten, while the upper arm remains relatively stable.

Explanation

A hinge joint exists in the elbow because it allows for movement in only one plane, similar to a door hinge. This type of joint allows for flexion and extension, but restricts other types of movement such as rotation or side-to-side motion. The elbow joint acts like a hinge, allowing the forearm to bend and straighten, while the upper arm remains relatively stable.

5. Which of these is NOT a type of vertebrae?

Lumbar Vertebrae

Thoracic Vertebrae

Sacral Vertebrae

Cervical Vertebrae

The sacral vertebrae are indeed a type of vertebrae. They are five fused vertebrae located in the lower back and form the sacrum. The lumbar vertebrae are also a type of vertebrae, located in the lower back. The thoracic vertebrae are located in the mid-back and the cervical vertebrae are located in the neck. Therefore, the correct answer is Sacral Vertebrae.

Explanation

The sacral vertebrae are indeed a type of vertebrae. They are five fused vertebrae located in the lower back and form the sacrum. The lumbar vertebrae are also a type of vertebrae, located in the lower back. The thoracic vertebrae are located in the mid-back and the cervical vertebrae are located in the neck. Therefore, the correct answer is Sacral Vertebrae.

6. The function of a ______ is to connect the muscle to the bone..

Ligament

Tendon

Joint

Cartilage

A tendon is a fibrous connective tissue that connects muscle to bone. It is responsible for transmitting the force generated by the muscle to the bone, allowing movement and providing stability to the joint. Unlike ligaments, which connect bone to bone, tendons specifically connect muscle to bone. Therefore, the correct answer is tendon.

Explanation

A tendon is a fibrous connective tissue that connects muscle to bone. It is responsible for transmitting the force generated by the muscle to the bone, allowing movement and providing stability to the joint. Unlike ligaments, which connect bone to bone, tendons specifically connect muscle to bone. Therefore, the correct answer is tendon.

7. One of yellow bone marrow's functions is too..

Store fat

Create proteins

Create red blood cells

All of the above

Yellow bone marrow is primarily responsible for storing fat in the body. It is composed of adipocytes, which are specialized cells that store excess energy in the form of fat. This stored fat can be used as a source of energy during times of fasting or when the body requires additional energy. Therefore, the correct answer is "Store fat."

Explanation

Yellow bone marrow is primarily responsible for storing fat in the body. It is composed of adipocytes, which are specialized cells that store excess energy in the form of fat. This stored fat can be used as a source of energy during times of fasting or when the body requires additional energy. Therefore, the correct answer is "Store fat."