Capstone I Anatomy Exam Study Guidance

Q1. Identify the appendicular regions (e.g., shoulder joint, brachium, elbow joint, etc.) and name the bony elements within each region on an intact animal.

Background

Topic: Appendicular Skeleton Anatomy

This question tests your ability to recognize and label the major regions of the appendicular skeleton and to identify the bones that make up each region in animals such as the dog, horse, or cow.

Key Terms and Concepts:

• Appendicular skeleton: The portion of the skeleton that includes the limbs and limb girdles.

• Regions: Shoulder joint, brachium (upper arm), elbow joint, antebrachium (forearm), manus (hand/paw), carpus (wrist), metacarpus, digit (finger/toe), hip joint, thigh, stifle/knee, crus (leg), hock/tarsus (ankle), metatarsus, pes (foot).

• Bony elements: Scapula, humerus, radius, ulna, carpal bones, metacarpals, phalanges, pelvis, femur, tibia, fibula, tarsal bones, metatarsals, etc.

Step-by-Step Guidance

1. List each appendicular region mentioned in the question (e.g., shoulder joint, brachium, etc.).

2. For each region, recall the main bone(s) that are present. For example, the brachium contains the humerus.

3. Think about the anatomical position of each region on the limb and how the bones articulate with each other.

4. Use diagrams or models if available to help visualize the regions and their corresponding bones.

Try solving on your own before revealing the answer!

Q2. For the canine thoracic limb, identify the bones and major muscle groups, and be able to locate them on a specimen.

Background

Topic: Canine Thoracic Limb Anatomy

This question assesses your knowledge of the bones and muscles of the dog's forelimb, including their names, locations, and relationships.

Key Terms and Concepts:

• Major bones: Scapula, humerus, radius, ulna, carpal bones, metacarpals, phalanges.

• Muscle groups: Extrinsic muscles (e.g., pectorals, brachiocephalicus, trapezius), shoulder muscles (e.g., deltoideus, infraspinatus, supraspinatus), brachial muscles (e.g., triceps brachii, biceps brachii, brachialis), antebrachial muscles (extensors and flexors).

Step-by-Step Guidance

1. Review the list of bones and muscles provided in your notes or textbook for the canine thoracic limb.

2. Practice identifying each structure on diagrams, models, or actual specimens.

3. Group the muscles by their location and function (e.g., which muscles extend the elbow, which flex the carpus).

4. Consider the attachments and actions of each muscle group to help with identification.

Try solving on your own before revealing the answer!

Q3. Describe the effect of activity in each major nerve of the canine thoracic limb and predict the clinical deficit resulting from injury to each nerve.

Background

Topic: Peripheral Nerve Function and Clinical Correlates

This question tests your understanding of the functional anatomy of the nerves supplying the canine thoracic limb and the consequences of nerve injury.

Key Terms and Concepts:

• Major nerves: Suprascapular, musculocutaneous, axillary, radial, median, ulnar.

• Autonomous zones: Areas of skin innervated by a single nerve.

• Clinical deficit: Loss of function or sensation resulting from nerve injury.

Step-by-Step Guidance

1. For each nerve, recall the muscles and skin regions it innervates.

2. Think about the main action(s) of those muscles (e.g., extension, flexion of joints).

3. Consider what would happen if the nerve was damaged—what movement or sensation would be lost?

4. Use clinical examples or case studies to reinforce your understanding.

Try solving on your own before revealing the answer!

Q4. Identify the location and function of the major arteries and veins of the canine thoracic limb.

Background

Topic: Vascular Anatomy of the Forelimb

This question focuses on the main blood vessels supplying and draining the canine thoracic limb.

Key Terms and Concepts:

• Arteries: Brachial artery, median artery.

• Veins: Cephalic vein, accessory cephalic vein.

• Location: Where these vessels can be found and palpated.

Step-by-Step Guidance

1. Review the course materials for diagrams showing the course of each artery and vein.

2. Practice tracing the vessels from their origin to their termination on diagrams or specimens.

3. Note any clinically relevant sites for venipuncture or pulse palpation.

Try solving on your own before revealing the answer!

Q5. For the equine thoracic limb, identify the bones, muscles, vessels, and nerves, and describe the locations for common nerve blocks.

Background

Topic: Equine Thoracic Limb Anatomy and Clinical Procedures

This question integrates anatomical knowledge with clinical application, focusing on the horse's forelimb.

Key Terms and Concepts:

• Bones: Scapula, humerus, radius, ulna, carpal bones, metacarpals, phalanges, sesamoid bones.

• Muscles: Pectorals, brachiocephalicus, supraspinatus, infraspinatus, biceps brachii, triceps brachii, etc.

• Vessels: Median artery, medial palmar artery, digital arteries.

• Nerves: Median, palmar, digital nerves and their branches.

• Nerve blocks: Palmar digital, basisesamoid, low palmar (4-point) block—location and area anesthetized.

Step-by-Step Guidance

1. Review the anatomy of the equine thoracic limb, focusing on the structures listed.

2. Use diagrams to locate each bone, muscle, vessel, and nerve.

3. For nerve blocks, learn the anatomical landmarks used for injection and the regions desensitized by each block.

4. Practice labeling diagrams or describing the procedure step-by-step.

Try solving on your own before revealing the answer!