Anatomy & Physiology Study Guide: Skeletal System

Q20. Name a function of the appendicular skeleton

Background

Topic: Appendicular Skeleton

This question tests your understanding of the roles played by the appendicular skeleton in the human body.

Key Terms:

• Appendicular skeleton: The portion of the skeleton that includes the limbs and girdles (shoulder and pelvic girdles).

Step-by-Step Guidance

1. Recall that the appendicular skeleton consists of bones of the arms, legs, and the girdles that attach them to the axial skeleton.

2. Think about how these bones contribute to movement and interaction with the environment.

3. Consider the main functions such as locomotion, manipulation of objects, and support.

Try solving on your own before revealing the answer!

Final Answer:

One function of the appendicular skeleton is to facilitate movement by providing attachment points for muscles and forming the framework for the limbs.

This allows for locomotion and manipulation of the environment.

Q21. Recall terms for types of depressions

Background

Topic: Bone Surface Markings

This question is about anatomical terminology for depressions found on bones.

Key Terms:

• Depression: A hollow or lowered area on a bone, often serving as a site for muscle attachment or passage of nerves/vessels.

Step-by-Step Guidance

1. Review common anatomical terms for bone depressions.

2. Think about examples such as fossa, sulcus, and groove.

3. Recall their definitions and where they might be found in the skeleton.

Try solving on your own before revealing the answer!

Final Answer:

Common terms for types of depressions include fossa, sulcus, and groove.

These are areas where muscles, tendons, or ligaments attach, or where nerves and blood vessels pass.

Q22. Know terms for openings of bone

Background

Topic: Bone Surface Markings

This question tests your knowledge of anatomical terms for openings in bones.

Key Terms:

• Opening: A hole or passage in a bone, often for nerves or blood vessels.

Step-by-Step Guidance

1. Recall the main terms used for bone openings, such as foramen, canal, and meatus.

2. Think about their definitions and examples in the human skeleton.

3. Consider why these openings are important for anatomy and physiology.

Try solving on your own before revealing the answer!

Final Answer:

Terms for openings in bone include foramen, canal, and meatus.

These allow passage of nerves, blood vessels, and other structures.

Q23. Name functions of axial skeleton

Background

Topic: Axial Skeleton

This question is about the roles of the axial skeleton in the body.

Key Terms:

• Axial skeleton: The part of the skeleton that includes the skull, vertebral column, and thoracic cage.

Step-by-Step Guidance

1. Recall the components of the axial skeleton.

2. Think about how these structures protect vital organs and provide support.

3. Consider functions such as protection, support, and attachment for muscles.

Try solving on your own before revealing the answer!

Final Answer:

The axial skeleton functions to protect vital organs (such as the brain, heart, and lungs), provide structural support, and serve as attachment points for muscles.

Q24. Identify cranial bones

Background

Topic: Skull Anatomy

This question tests your ability to recall the names of the bones that make up the cranium.

Key Terms:

• Cranial bones: Bones that form the protective case around the brain.

Step-by-Step Guidance

1. List the bones that make up the cranium.

2. Recall their locations and functions.

3. Think about how many cranial bones there are and their names.

Try solving on your own before revealing the answer!

Final Answer:

The cranial bones are: frontal, parietal, temporal, occipital, sphenoid, and ethmoid.

These bones collectively protect the brain.

Q25. Identify sutures of cranial bones

Background

Topic: Skull Sutures

This question is about the joints (sutures) between cranial bones.

Key Terms:

• Suture: An immovable joint between bones of the skull.

Step-by-Step Guidance

1. Recall the main sutures of the skull, such as coronal, sagittal, lambdoid, and squamous.

2. Think about which bones each suture connects.

3. Review their anatomical locations.

Try solving on your own before revealing the answer!

Final Answer:

The main sutures are: coronal, sagittal, lambdoid, and squamous.

Each suture connects specific cranial bones.

Q26. Define “soft spots”

Background

Topic: Infant Skull Anatomy

This question is about the areas on an infant's skull known as "soft spots."

Key Terms:

• Fontanel: A soft, membranous gap between cranial bones in infants.

Step-by-Step Guidance

1. Recall the term used for "soft spots" on an infant's skull.

2. Think about why these areas exist and their function.

3. Consider how they change as the child grows.

Try solving on your own before revealing the answer!

Final Answer:

"Soft spots" are called fontanels, which are membranous gaps between cranial bones in infants.

They allow for growth of the brain and skull during early development.

Q27. Recall the name of the hole in the occipital bone for the spinal cord

Background

Topic: Skull Anatomy

This question is about the opening in the occipital bone through which the spinal cord passes.

Key Terms:

• Foramen: An opening or hole in a bone.

Step-by-Step Guidance

1. Recall the anatomical term for the large opening in the occipital bone.

2. Think about its function and what passes through it.

3. Review its location at the base of the skull.

Try solving on your own before revealing the answer!

Final Answer:

The hole in the occipital bone for the spinal cord is called the foramen magnum.

It allows the spinal cord to connect with the brain.

Q28. Name the order of vertebral column from superior to inferior

Background

Topic: Vertebral Column Anatomy

This question tests your knowledge of the sequence of regions in the vertebral column.

Key Terms:

• Vertebral column: The spine, made up of several regions.

Step-by-Step Guidance

1. Recall the names of the regions of the vertebral column.

2. Think about their order from the top (superior) to the bottom (inferior).

3. Review the number of vertebrae in each region.

Try solving on your own before revealing the answer!

Final Answer:

The order is: cervical, thoracic, lumbar, sacral, and coccygeal.

This sequence goes from the neck to the tailbone.

Q29. Identify key features of atlas and axis

Background

Topic: Cervical Vertebrae

This question is about the first two cervical vertebrae, known as the atlas and axis.

Key Terms:

• Atlas (C1): The first cervical vertebra.

• Axis (C2): The second cervical vertebra.

Step-by-Step Guidance

1. Recall the unique features of the atlas and axis.

2. Think about how the atlas supports the skull and allows nodding.

3. Consider the axis's dens (odontoid process) and its role in rotation.

Try solving on your own before revealing the answer!

Final Answer:

The atlas (C1) lacks a body and allows nodding; the axis (C2) has the dens, which enables rotation of the head.

Q30. Name true ribs

Background

Topic: Thoracic Cage Anatomy

This question is about the ribs that are directly attached to the sternum.

Key Terms:

• True ribs: Ribs that attach directly to the sternum via their own costal cartilage.

Step-by-Step Guidance

1. Recall how many pairs of true ribs there are.

2. Think about their anatomical position and attachment.

3. Review the difference between true, false, and floating ribs.

Try solving on your own before revealing the answer!

Final Answer:

True ribs are the first seven pairs of ribs, which attach directly to the sternum.

Q31. Recall what bones form the pectoral girdle

Background

Topic: Appendicular Skeleton

This question is about the bones that make up the pectoral girdle.

Key Terms:

• Pectoral girdle: The set of bones that attach the upper limb to the trunk.

Step-by-Step Guidance

1. Recall the two bones that form the pectoral girdle.

2. Think about their anatomical locations and functions.

3. Review how they connect the arm to the axial skeleton.

Try solving on your own before revealing the answer!

Final Answer:

The pectoral girdle is formed by the clavicle and scapula.

These bones attach the upper limb to the trunk.

Q32. Identify the upper arm bone

Background

Topic: Upper Limb Anatomy

This question is about the bone found in the upper arm.

Key Terms:

• Upper arm bone: The bone between the shoulder and elbow.

Step-by-Step Guidance

1. Recall the name of the bone in the upper arm.

2. Think about its anatomical location and function.

3. Review its role in movement and muscle attachment.

Try solving on your own before revealing the answer!

Final Answer:

The upper arm bone is the humerus.

Q33. Describe how the ulna relate directionally to the radius

Background

Topic: Forearm Anatomy

This question is about the relative positions of the ulna and radius in the forearm.

Key Terms:

• Ulna: One of the two bones in the forearm.

• Radius: The other bone in the forearm.

Step-by-Step Guidance

1. Recall the anatomical position of the ulna and radius.

2. Think about which bone is medial and which is lateral in the forearm.

3. Review their relationship in both anatomical and functional terms.

Try solving on your own before revealing the answer!

Final Answer:

The ulna is medial (closer to the body) and the radius is lateral (closer to the thumb) in the anatomical position.

Q34. Know the bones of the forearm

Background

Topic: Forearm Anatomy

This question is about the bones that make up the forearm.

Key Terms:

• Forearm: The region between the elbow and wrist.

Step-by-Step Guidance

1. Recall the two bones found in the forearm.

2. Think about their anatomical positions and functions.

3. Review their roles in movement and muscle attachment.

Try solving on your own before revealing the answer!

Final Answer:

The bones of the forearm are the radius and ulna.

Q35. Understand structural differences between male and female pelvis

Background

Topic: Pelvic Anatomy

This question is about the anatomical differences between male and female pelvises.

Key Terms:

• Pelvis: The bony structure at the base of the spine.

Step-by-Step Guidance

1. Recall the main structural differences between male and female pelvises.

2. Think about how these differences relate to childbirth and body shape.

3. Review features such as pelvic inlet, pubic arch, and overall width.

Try solving on your own before revealing the answer!

Final Answer:

The female pelvis is wider, has a larger pelvic inlet, and a broader pubic arch compared to the male pelvis, which is narrower and more robust.

These differences facilitate childbirth in females.