*A&P 1 Unit 8 (Lab) [Skeletal System (Appendicular Skeleton)] Flashcards
Two bones of the shoulder girdle:
- Clavicle
- Scapula
Acromioclavicular Joint
The anterior coracoid process and the posterior acromion, forms a joint with the clavicle.
Anterior View
Superior Border
Anterior View
Lateral Border
Anterior View
Medial Border
Anterior View
Glenoid Cavity
Anterior View
Coracoid Process
Anterior View
Acromion Process
Posterior View
Spine of Scapula
4 Regions of the Upper Limb
- Arm
- Forearm
- Wrist
- Hand
Number of Bones in the Arm
1 (Humerus)
Number of Bones in the Forearm
2 (the lateral Radius & the medial Ulna)
The articulation of the humerus and and the scapula.
At the proximal end of the humerus is a rounded head that fits into the glenoid cavity.
Which Forearm Bone is Lateral?
Radius
Which Forearm Bone is Medial?
Ulna
Proximal Radioulnar Joint
Proximally it consists of a radial hea that articulates with the ulna.
Distal Radioulnar Joint
The two bones also articulate at their distal ends.
Number of Bones in the Wrist
8 Short bones called carpals.
Names of the Bones in the Palm and Digits.
Metacarpals (I-V) [I starts at the thumb] & Phalanges (14)
Which Digit has only two phalanges?
The Thumb
Which digits have 3 phalanges each?
The second through the fifth digits.
What shape are the bones of the upper limb?
Long Bones
Head of Humerus
Fits into the Glenoid Cavity.
Greater Tubercle of Humerus
Lesser Tubercle of Humerus
Intertubercular Sulcus of Humerus
Seperates the Lesser and Greater Tubercles.
Deltoid Tuberosity of Humerus
Where the Deltoid muscle attaches.
Radial Fossa of Humerus
Coronoid Fossa of Humerus
Where the bones of the forearm articulate
Olecranon Fossa of Humerus
Where the bones of the forearm articulate
Medial Epicondyle of Humerus
Lateral Epicondyle of Humerus
Capitulum of Humerus
Trochlea of Humerus
Radial Head of Radius
Articulates with the ulna at the proximal radioulnar joint
Radial Neck of Radius
Bottom, Not Top
Styloid Process of Radius
Ulnar Head of Ulna
Articulates with the radius to form the distal radioulnar joint
Styloid Process of the Ulna
Olecranon Process of Ulna
Trochlear Notch of Ulna
Carpals
Articlulate with the radius and the ulna and the metacarpals.
Metacarpals (I-V)
Articulate with the fingers
Proximal Phalanges (I-V)
Intermediate Phalanges (II-V)
Distal Phalanges (I-V)
3 Functions of the Pelvic Girdle
- Connects the lower limbs of the trunk
- Supports the pelvic organs
- Transmits the weight of the trunk to the legs.
Number of Coxal Bones That Make Up the Pelvic Girdle
2 Coxal Bones
3 Fused Bones That Make Up Each Coxal Bone
- Ilium
- Ischium
- Pubis
Describe the Pubic Symphysis
The midline cartilaginous joint (secondary cartilaginous) uniting the superior rami of the left and right pubic bones.
Ilium of Pelvic Girdle
Ischium of Pelvic Girdle
Pubic Bone of Pelvic Girdle
Acetabulum of Pelvic Girdle
Forms the hip joint with the femur.
Obturator Foramen of Pelvic Girdle
Large whole where the ischium and pubis meet.
Iliac Crest of Pelvic Girdle
Iliac Fossa of Pelvic Girdle
Ischial Tuberosity of Pelvic Girdle
You sit on it
Articular Surface of Pubis
Regions of the Lower Limb
- Thigh
- Patella
- Leg
- Ankle
- Foot
Number of Bones in the Thigh
1 Bone (Femur)
Number of Bones in the Leg
2 Bones (medial Tibia & lateral Fibula)
Number of Bones in the Ankle
7 Short Bones called Tarsals.
Number of Bones in the Foot
- 5 Longs Bones called Metatarsals
- 14 Phalanges
Which Leg Bone is Lateral?
Fibula
Which Leg Bone is Medial?
Tibia
Describe the Proximal Articulation of the Femur and the Hip Bone.
Proximlly, the femur articulates with the acetabulum at its rounded head.
Describe the Distal Articulation of the Femur and the Tibia.
Distally, the femur expands into the medial and lateral condyles, which form the knee joint with the largest bone of the leg, the tibia.
Describe the Distal Articulation of the Tibia with the Ankle.
Distally, the tibia articulates with a tarsal bone called the talus, with which it forms the ankle joint.
Describe how the fibula articulates with the tibia, and talus.
The fibula doesn’t articulate directly with either the femur or the talus. It does, however, articulate with the lateral side of the tibia at proximal and distal tibiofibular joints.
Head of Femur
Articulates with the acetabulum at its head to form the hip joint.
Fovea Capitis of Femur
Pit in the head of the femur. It is the point of attachment for a ligament that holds the femur in the acetabulum.
Neck of Femur
Weakest part of femur
Great Trochanter of Femur
Lesser Trochanter of Femur
Patellar Surface of Femur
Lateral Condyle of Femur
Form the knee joint with the tibia
Medial Condyle of Femur
Form the knee joint with the tibia
Lateral Condyle of Tibia
Form the knee joint with the femur
Medial Condyle of Tibia
Form the knee joint with the femur
Tibial Tuberosity of Tibia
Medial Malleolus of Tibia
Head of Fibula
Lateral Malleolus of Fibula
Tarsals
Articulate with the 5 long bones of the foot called the metatarsals and the tibia
Talus of Tarsals
Calcaneus of Tarsals
Metatarsals (I-V)
Proximal Phalanges of Toes (I-V)
Intermediate Phalanges of Toes (II-V)
Distal Phalanges of Toes (I-V)
Pelvic Inlet Shape (Pelvic Girdle Differences Between Male and Female)
- Female: Wider and oval-shaped
- Male: Narrower and heart-shaped
Pubic Arch (Pelvic Girdle Differences Between Male and Female)
- Female: Wide Angle
- Male: Narrow Angle
Acetabulae (Pelvic Girdle Differences Between Male and Female)
- Female: Farther Apart
- Male: Closer Together
Ischial Tuberosities (Pelvic Girdle Differences Between Male and Female)
- Female: Everted
- Male: Inverted
Coccyx (Pelvic Girdle Differences Between Male and Female)
- Female: Staighter, more movable
- Male: Curved anteriorly, less movable