Bony Landmarks Of The Arm And Shoulder Flashcards
What is the primary bone that forms the shoulder girdle?
Clavicle
True or False: The scapula is also known as the shoulder blade.
True
Fill in the blank: The _____ connects the upper limb to the trunk.
shoulder girdle
Which bone is located on the lateral side of the shoulder girdle?
Scapula
What are the two main joints associated with the shoulder girdle?
Sternoclavicular joint and acromioclavicular joint
Identify the bony landmark on the scapula that articulates with the humerus.
Glenoid cavity
What is the name of the bony prominence at the end of the clavicle?
Acromion
True or False: The humerus is the only bone in the upper arm.
True
What is the greater tubercle of the humerus?
A bony prominence on the lateral side of the humerus
Which muscle attaches to the lesser tubercle of the humerus?
Subscapularis
What is the function of the coracoacromial ligament?
It provides support to the shoulder joint.
Fill in the blank: The _____ is the large cavity in the scapula that receives the head of the humerus.
glenoid cavity
What is the anatomical term for the upper part of the shoulder blade?
Superior angle
True or False: The spine of the scapula is located on the anterior surface.
False
What is the name of the depression on the posterior side of the scapula?
Supraspinous fossa
Identify the landmark on the humerus where the deltoid muscle attaches.
Deltoid tuberosity
What is the primary function of the shoulder girdle?
To connect the arm to the trunk and allow for a wide range of motion.
Which bony landmark is found at the distal end of the humerus?
Capitulum
True or False: The scapula has three borders: medial, lateral, and superior.
True
What structure provides stability to the shoulder joint?
Rotator cuff muscles
Fill in the blank: The _____ is the area on the humerus that separates the greater and lesser tubercles.
intertubercular groove
What is the function of the acromioclavicular joint?
It allows for movement between the clavicle and scapula.
Which part of the scapula is known for its flat, triangular shape?
Body of the scapula
Identify the major nerve that runs along the posterior side of the shoulder.
Axillary nerve
What is the significance of the coracoid process?
It serves as an attachment point for muscles and ligaments.
True or False: The shoulder girdle consists of four bones.
False
What is the primary role of the rotator cuff?
To stabilize the shoulder joint.
Fill in the blank: The _____ is a joint formed by the humerus and the scapula.
glenohumeral joint
What is the anatomical term for the lower edge of the scapula?
Inferior angle
Identify the bony landmark on the humerus where the triceps brachii muscle attaches.
Olecranon fossa
What type of joint is the glenohumeral joint?
Ball-and-socket joint
True or False: The clavicle is the only bone that connects the arm to the trunk.
True
What is the primary purpose of the scapular notch?
To allow passage of nerves and blood vessels.
Fill in the blank: The _____ is the term for the upper arm bone.
humerus
Which bony landmark is located at the proximal end of the humerus?
Head of the humerus
What is the significance of the suprascapular notch?
It provides a passage for the suprascapular nerve.
True or False: The scapula articulates directly with the rib cage.
False
What is the primary function of the deltoid muscle?
To abduct the arm.
Fill in the blank: The _____ is a bony projection on the scapula that provides attachment for muscles.
coracoid process
What is the name of the joint formed by the clavicle and the sternum?
Sternoclavicular joint
Identify the location of the infraspinous fossa.
On the posterior side of the scapula, below the spine.
What is the primary role of the biceps brachii muscle?
To flex the elbow and supinate the forearm.
True or False: The shoulder joint has the greatest range of motion of any joint in the body.
True
What structure connects the scapula to the humerus?
Glenoid cavity
Fill in the blank: The _____ is the rounded end of the humerus that fits into the glenoid cavity.
head
