Veterinary Anatomy: Joints and Ligaments
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Questions and Answers

Which bones form the temporomandibular joint?

  • Frontal bone and nasal bone
  • Zygomatic arch and palatine bone
  • Squamous part of the skull and condylar process of the mandible (correct)
  • Maxilla and mandible

What type of joint is the atlanto-occipital joint classified as?

  • Composite joint
  • Fibrous joint
  • Synovial joint
  • Simple joint (correct)

Which ligament is found in the atlanto-axial joint?

  • Ligamentum laterale
  • Ligamentum caudale
  • Ligamentum transversum atlantis
  • Ligamentum atlantoaxiale dorsale (correct)

Which type of joint is formed between adjacent vertebrae?

<p>Simple joint (C)</p> Signup and view all the answers

What is the primary function of the cartilages in the symphysis intervertebralis?

<p>Provide shock absorption (C)</p> Signup and view all the answers

What is a distinguishing feature of the ligaments in large animals regarding the temporomandibular joint?

<p>They have two ligaments (C)</p> Signup and view all the answers

Which ligament is only present in dogs and pigs within the atlanto-axial joint?

<p>Ligamentum transversum atlantis (C)</p> Signup and view all the answers

Which ligaments are classified as long ligaments in the vertebral column?

<p>Both B and C (C)</p> Signup and view all the answers

What is the structure of the nuchal ligament in large animals?

<p>It has both funiculus nuchae and lamina nuchae. (C)</p> Signup and view all the answers

Which ligament connects the caput costae and the thoracic vertebrae?

<p>Ligamentum capitis costae (A)</p> Signup and view all the answers

Which ligaments are associated with the elbow joint?

<p>Ligamentum collaterale laterale and ligamentum collaterale mediale (D)</p> Signup and view all the answers

Which of the following describes the type of shoulder joint in birds?

<p>Articulatio coraco-scapulo humeralis (D)</p> Signup and view all the answers

What type of joint is the elbow joint classified as?

<p>Composite and uniaxial (A)</p> Signup and view all the answers

What component is absent in the nuchal ligament of small animals like pigs and cats?

<p>Both funiculus and lamina (B)</p> Signup and view all the answers

What is the role of the nuchal ligament?

<p>Supporting head weight (B)</p> Signup and view all the answers

Which ligament is found between the radius and ulna in carnivores?

<p>Ligamentum olecrani (D)</p> Signup and view all the answers

What are the bones forming the carpal joint?

<p>Distal of the radius and ulna, carpal bones and proximal of the metacarpal bone (B)</p> Signup and view all the answers

Which ribs are connected by ligamentum intercapitale?

<p>Left and right ribs (D)</p> Signup and view all the answers

What distinguishes the shoulder joint in carnivores from that in large animals?

<p>Presence of multi-ligament structure (D)</p> Signup and view all the answers

Which type of joint is the carpal joint categorized as?

<p>Hinge, composite, uniaxial joint (C)</p> Signup and view all the answers

Which joint is classified as a uniaxial joint?

<p>Tarsal joint (C)</p> Signup and view all the answers

Regarding the phalangeal joints, which structures are involved in the metacarpophalangeal joint?

<p>Metacarpal bone, proximal phalanx, and sesamoid bone (C)</p> Signup and view all the answers

Which ligaments are associated with the shoulder joint?

<p>Ligamentum coracohumarale and ligamentum glenohumerale (B)</p> Signup and view all the answers

What type of cartilage covers the articular surfaces of movable joints?

<p>Hyaline cartilage (C)</p> Signup and view all the answers

What is the function of ligamentum tuberculum?

<p>Linking the tuberculum costae to vertebrae (B)</p> Signup and view all the answers

Which type of joint is the proximal interphalangeal joint?

<p>Uniaxial and saddle joint (D)</p> Signup and view all the answers

What ligaments are associated with the metacarpophalangeal joint?

<p>Lig.sesamoideum obliquum and lig.sesamoideum rectum (B)</p> Signup and view all the answers

What type of joint is formed by the junction of the vertebrae and the head of the rib?

<p>Costovertebral joint (B)</p> Signup and view all the answers

Which zone of the articular cartilage contains elongated and flattened chondrocytes?

<p>Superficial zone (A)</p> Signup and view all the answers

What type of joint is the tarsocrural joint classified as?

<p>Cochlear joint (A)</p> Signup and view all the answers

Which species difference is noted in ruminants regarding the phalangeal joints?

<p>Lig.interdigitale proximale and lig.interdigitale distale (C)</p> Signup and view all the answers

Which of the following ligaments is associated with the tarsal joint?

<p>Lig.collaterale laterale longum (D)</p> Signup and view all the answers

What is the main ligament that holds the radius and ulna together in carnivores?

<p>Ligamentum anulare radii (D)</p> Signup and view all the answers

What feature separates the calcified zone from the deep (radial) zone in articular cartilage?

<p>Tidemark (A)</p> Signup and view all the answers

Which joint forms between the central tarsal bones and the distal tarsal bones?

<p>Distal intertarsal joint (D)</p> Signup and view all the answers

Which bones form the distal interphalangeal joint?

<p>Middle and distal part, sesamoid bone (B)</p> Signup and view all the answers

What type of joint is the sacroiliac joint classified as?

<p>Simple joint (D)</p> Signup and view all the answers

Which ligament is considered a strong ligament in the hip joint?

<p>Lig.capitis ossis femoris (C)</p> Signup and view all the answers

What is the primary type of joint for the stifle joint?

<p>Hinge joint (A)</p> Signup and view all the answers

Which type of joint is the hip joint characterized as?

<p>Multiaxial (D)</p> Signup and view all the answers

Which ligaments are present in the cranial aspect of the stifle joint?

<p>Femorotibial and femoropatellar ligaments (C)</p> Signup and view all the answers

What unique feature pertains to the patellar ligaments in horses?

<p>Have 3 patellar ligaments (C)</p> Signup and view all the answers

Which species feature only two ligaments in the sacroiliac joint?

<p>Carnivores (B)</p> Signup and view all the answers

Which joint is characterized as a condylar joint?

<p>Stifle joint (A)</p> Signup and view all the answers

What types of ligaments are included in the lateral aspect of the stifle joint?

<p>Femoropatellare laterale and femoropatellare mediale (D)</p> Signup and view all the answers

Flashcards

Temporomandibular Joint (TMJ)

A composite joint formed by the skull and mandible, containing an articular disc.

TMJ Ligaments (small animals)

A single ligament (laterale) supports the jaw joint in small animals.

TMJ Ligaments (large animals)

The jaw joint in larger animals has two ligaments (laterale and caudale).

Atlanto-occipital Joint

A simple joint between the skull and the first vertebra.

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Atlanto-axial Joint

A simple joint between the first and second vertebrae.

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Ligaments in Vertebral Canal

Include longitudinal ligaments, alar ligament, and some species have additional ventral ligaments.

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Intervertebral Symphysis

Cartilaginous joints between vertebrae for shock absorption.

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Vertebral Column Ligaments

Long ligaments span the entire spine on top of short ligaments, which only connect two vertebrae.

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Elbow joint types

The elbow joint is a composite, uniaxial joint.

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Elbow joint ligaments

The elbow joint has collateral ligaments (lateral and medial) that stabilize the joint.

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Elbow joint species difference

Large animals have an interosseous membrane between the radius and ulna; carnivores have a ligamentum olecrani.

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Carpal joint types

The carpal joint is a hinge, composite, uniaxial joint.

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Carpal joint ligaments

The carpal joint has collateral ligaments, ligaments between carpal bones, and ligaments connecting carpal bones to metacarpal bones.

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Metacarpophalangeal joint types

The metacarpophalangeal joint is a uniaxial, composite, hinge joint.

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Metacarpophalangeal joint ligaments

The metacarpophalangeal joint has collateral ligaments, and ligaments linked to sesamoid bones.

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Proximal interphalangeal joint types

The proximal interphalangeal joint is a uniaxial, saddle joint.

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Ruminant phalangeal ligaments

Ruminants have interdigital ligaments (proximal and distal) between their hooves.

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Carnivore claw ligaments

Carnivores have dorsal ligaments between their claws and the bones.

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Tarsal Joint

A type of joint found in the foot, connecting the tibia and fibula to the metatarsal bones. Characterized by a uniaxial structure, allowing for limited movement.

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Tarsocrural Joint

A joint in the lower leg where the tibia and fibula connect with the proximal row of the tarsal bones. It's a cochlear joint, allowing for a limited hinge-like motion.

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Proximal Intertarsal Joint

Located in the foot, this joint connects the proximal tarsal bones to the central row of tarsal bones. It functions as a cochlear joint, allowing for limited movement.

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Distal Intertarsal Joint

A joint within the ankle that connects the central tarsal bones to the distal tarsal bones. It's a cochlear joint allowing some limited movement.

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Tarsometatarsal Joint

Located in the foot, this joint connects the distal tarsal bones to the proximal metatarsal bones. It functions as a cochlear joint for small movements.

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Articular Cartilage Structure

A specialized type of hyaline cartilage covering the ends of bones in moveable joints. It has no perichondrium and consists of four zones, each with distinct histological features.

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Zones of Articular Cartilage

Articular cartilage is composed of four zones: Superficial (tangential): pressure-resistant, elongated chondrocytes; Intermediate (transitional): round chondrocytes; Deep (radial): small, round chondrocytes in columns; Calcified: calcified matrix, separated from the deep zone by a tidemark. Each zone has a specific arrangement of chondrocytes and collagen fibers.

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Distal Interphalangeal Joint

A joint formed by the middle and distal phalanges, with a sesamoid bone. It is a uniaxial, composite, and saddle joint.

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Sacroiliac Joint

A joint between the sacrum and the hip bone. It's a simple, plane, and tight joint with limited movement. Ligaments include: dorsal breve, dorsal longum, and sacrotuberale latum.

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Hip Joint

A joint formed by the hip bone and femur, specifically the acetabulum and femoral head. It's a simple, multiaxial joint.

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Hip Joint Ligaments

The hip joint has two main ligaments: lig.capitis ossis femoris (strong ligament) and ligamentum transversum acetabulum.

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Stifle Joint

The joint located in the knee, formed by the femur, tibia, fibula, and patella. It's a hinge, condylar, and sledge joint.

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Stifle Joint Ligaments

Stifle joint ligaments are classified into 4 categories: meniscus, femorotibial, femoropatellar, and patellar. These ligaments provide stability and allow for movement.

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Stifle Joint Ligaments - Cranial Aspect

Ligaments on the front of the stifle joint include: meniscus ligaments, femorotibial ligaments, femoropatellar ligaments, and patellar ligaments.

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Stifle Joint Ligaments - Femorotibial Ligaments

Femorotibial ligaments connect the tibia and femur. This category includes the collateral ligaments: laterale and mediale.

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Stifle Joint Ligaments - Patellar Ligaments

Patellar ligaments include: laterale, intermedial, and mediale, connecting the tibia and patella.

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Stifle Joint Ligaments - Caudal Aspect

Ligaments on the back of the stifle joint include: meniscofemorale, cruciatum cudale, tibiale caudale menicsi medialis, and tibiale caudale menicsi lateralis.

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Ligamentum nuchae structure

The nuchal ligament has two parts: the funiculus nuchae (rope-like, starts at the skull and ends on the 3rd or 5th thoracic vertebrae) and the lamina nuchae (flat, located under the funiculus nuchae).

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Ligamentum nuchae function

The nuchal ligament supports the weight of the head when held high, reducing stress on the head and neck muscles.

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Ligamentum nuchae species differences

Large animals have both funiculus and lamina nuchae. Small animals, like pigs and cats, lack a nuchal ligament due to short necks and strong muscles. Dogs only have the funiculus nuchae, starting at the axis.

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Articulatio capitis costae

The joint between the head of a rib (caput costae) and the thoracic vertebrae.

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Costotransverse articulation

The joint between the neck of the rib (collum costae) and the thoracic vertebrae.

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Ligamentum capitis costae

Connects the head of the rib (caput costae) to the vertebrae.

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Costotransverse ligament

Connects the neck of the rib (collum costae) to the vertebrae.

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Ligamentum tuberculum

Connects the tubercle of the rib to the vertebrae.

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Ligamentum intercapitale

Connects the left and right ribs together.

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Shoulder joint bones

The shoulder joint is formed by the scapula and the humerus.

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Study Notes

Assessment Joints, Anatomy and Histology

  • Temporomandibular Joint (TMJ):

    • Formed by the skull's squamous part and the mandible's condylar process.
    • Composite joint due to an articular disc.
    • Small animals (dogs, pigs) have one ligament (ligamentum laterale).
    • Large animals (horses, oxen) have two (ligamentum laterale and ligamentum caudale).
  • Atlanto-occipital Joint:

    • Between the occipital bone and the first vertebra.
    • Simple joint.
    • Ligaments: Ligamentum laterale, dorsal and ventral atlanto-occipital membranes.
  • Atlanto-axial Joint:

    • Between the first and second vertebrae.
    • Simple joint.
    • Ligaments: Longitudinal ligament, right and left alar ligaments (dorsal and ventral).
    • Species variation: Ventral aspect ligament (ligamentum atlantoaxiale ventrale) only in ruminants and horses. Dogs and pigs have the transverse ligament of the atlas (ligamentum transversum atlantis).
  • Vertebral Articulations:

    • Adjacent vertebrae are connected by cartilages (intervertebral discs).
    • These act as shock absorbers, with synovial joints in the articular processes.
    • Long ligaments extend along the vertebral column (spinal process, dorsal/ventral longitudinal).
    • Short ligaments connect adjacent vertebrae (interspinalia, intertransversaria, flava).
  • Nuchal Ligament:

    • Structure: Two parts (funiculus and lamina) supporting the skull weight.
    • Species variation: Large animals have the full structure. Small animals (dogs, pigs) mostly only have funiculus nuchae.
  • Costovertebral Articulations:

    • Ribs articulate with thoracic vertebrae at two joints (capitis costae and costotransverse).
    • Ligaments: Ligamentum capitis costae, costotransverse ligaments, and ligamentum tuberculum.
  • Shoulder Joint:

    • Formed by the scapula and humerus.
    • Simple, multiaxial joint.
    • Ligaments: Coracohumeral ligament (in most mammals).
    • Multiple glenohumeral ligaments (more prevalent in carnivores).
    • Bird shoulder joint: articulatio coraco-scapulo-humeralis
  • Elbow Joint:

    • Formed by the distal humerus and the radius and ulna.
    • Composite, uniaxial joint.
    • Ligaments: collateral ligaments (lateral and medial).
  • Carpal Joint:

    • Formed by the radius/ulna and carpal bones, with multiple ligaments connecting the carpal bones.
    • Hinge, composite, uniaxial joint.
  • Phalangeal Joints:

    • Metacarpophalangeal, proximal interphalangeal, and distal interphalangeal joints.
    • Uniaxial, composite, and saddle joints.
    • Numerous ligaments, including collateral and sesamoid ligaments, varying by species.
  • Sacroiliac Joint:

    • Formed by the sacrum and ilium (coccyx/hip bone).
    • Simple, plane joint (minimal movement).
    • Ligaments: sacroiliac dorsalis longus/brevis, and sacrotuberale.
  • Hip Joint:

    • Formed by the hip bone (acetabulum) and femur.
    • Simple, multiaxial joint.
    • Ligaments: ligamentum capitis ossis femoris, and transverse acetabular ligament.
    • Bird hip joint: peculiarities vary.
  • Stifle Joint:

    • Formed by the femur, tibia, fibula, and patella.
    • Hinge, condylar, and/or saddle-like joint.
    • Numerous ligaments: collateral, medial/lateral meniscus, and cruciate ligaments.
    • Species variation for number and location of ligaments.
  • Tarsal Joint:

    • Formed by the tibia/fibula and metatarsal bones.
    • Uniaxial joint.
    • Species-specific ligaments (variations for collateral ligaments).

Histology

  • Articular Cartilage:

    • Hyaline cartilage covering joint surfaces.
    • Four zones (superficial, intermediate, deep, calcified).
    • Specialized tissue for shock absorption and friction reduction.
  • Synovial Joint Components:

    • Synovial membrane (fibroblasts, villi), fibrous capsule, synovial fluid.
    • Specialized connective tissue structure lining articular joints.
  • Intervertebral Disc:

    • Composed of anulus fibrosus (fibrocartilage) and nucleus pulposus (gelatinous tissue).
    • Provides support, shock absorption, and slight movement for vertebrae.

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Description

Test your knowledge of veterinary anatomy focusing on joints and ligaments. This quiz covers various types of joints, specifically the temporomandibular, atlanto-occipital, and elbow joints, along with associated ligaments in different animals. Enhance your understanding of the structural features that distinguish these anatomical components.

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