Infrahyoid region, root of the neck & submandibular triangle

• Región cervical anterior (Trígono cervical medial):

  • Trígono submentoniano
  • Trígono submandibular
  • Trígono carotídeo
  • Trígono musculare/omotraqueal
• Región cervical lateral (Trígono cervical lateral):

  • Trígono omoclavicular (Trígono omotrapezium)
• Trígono submandibular:

  • A.v. facialis – emite a.v. submentales
  • N. milohioideo – rama de n. mandibular
  • N. hipogloso
  • N. lingual
  • Ganglio submandibular
  • Trígono de Pirogovi – acceso a a. lingual, m. milohioideo, tendón m. digástrico, n. hipogloso
• Plexo cervical:

  • Ansa cervicalis (C1-C3)
  • Geniohioideo (C1)
  • Tiroidohioideo (C1)
  • Esternotiroideo
  • Esternohioideo
  • Omohioideo
• Nervio frénico (C3-C5, principalmente C4) – diafragma y pericardio

  • Ramas segmentarias (C1-C4) – escalenos anterior y medio
• Raíz del cuello:

  • Área de transición entre cuello y tórax
  • Se abre en la entrada superior torácica
  • Limitada por las primeras costillas lateralmente, manubrio del esternón anteriormente, cuerpo de T1 posteriormente
  • Estructuras topográficas: espacios antescaleno e interscaleno, trígono escalenovertebral
• Estructuras en la raíz del cuello:

  • Tronco braquiocefálico
  • Arteria subclavia y sus ramas
  • Vena subclavia
  • Terminación de la vena yugular interna
  • Conducto torácico
  • Ápice del pulmón
  • Nervio frénico
  • Nervio vago
• Arteria subclavia:

  • Dividida en 3 partes por el músculo escaleno anterior
  • Parte 1: medial al músculo, da 3 ramas (arteria vertebral, tronco tirocervical, arteria torácica interna)
  • Parte 2: posterior al músculo, da tronco costocervical
  • Parte 3: lateral al músculo, da rama dorsal de la escápula
• Venas:

  • Venas yugulares externas
  • Venas yugulares anteriores
  • Vena subclavia
  • Vena yugular interna
  • Venas se unen para formar la vena braquiocefálica
• Nervio vago:

  • Entre la carótida común y la vena yugular interna
  • Ramas en el cuello: nervio meníngeo, nervio auricular, nervios faríngeos, nervio laríngeo superior, nervio laríngeo recurrente, ramas cardíacas
• Trígono scalenovertebral

  • Ducto torácico
• Subjects

  • The Basics
  • Terminology
  • Anatomical Position
  • Body Planes
  • Terms of Movement
  • Terms of Location
  • Embryology Terms
  • Joints Classification
  • Synovial Joint
  • Joint Stability
  • Histology
  • Bone
  • Skeletal Muscle
  • Blood Vessels
  • Nerves
  • Lymphatics
  • Skin
  • Embryology Weeks 1-3
  • Dermatomes
  • Myotomes
  • The Limbs
  • Head and Neck
  • Cardiovascular System
  • Respiratory System
  • Urinary System
  • Reproductive System
  • Central Nervous System
  • Imaging
  • X-Ray
  • CT
  • MRI
  • Head Areas
  • Scalp
  • Cranial Fossae
  • Pterygopalatine Fossa
  • Infratemporal Fossa
  • Mastoid Fossa
  • Bones
  • Skull
  • Bony Orbit
  • Frontal Bone
  • Sphenoid Bone
  • Ethmoid Bone
  • Temporal Bone
  • Occipital Bone
  • Mandible
  • Nasal Skeleton
  • Cranial Foramina
  • Muscles
  • The Tongue
  • Facial Expression
  • Extraocular
  • Mastication
  • Nerves
  • Sympathetic Innervation
  • Parasympathetic Innervation
  • Ophthalmic Nerve
  • Maxillary Nerve
  • Mandibular Nerve
  • Organs
  • The Ear
  • The Eye
  • Nose and Sinuses
  • Salivary Glands
  • Oral Cavity
  • Joints
  • TMJ
  • Vessels
  • Arterial Supply
  • Venous Drainage
  • Lymphatics
  • Other
  • Lacrimal Gland
  • Eyelids
  • Teeth
  • Palate
  • Neuroanatomy
  • Structures
  • Basal Ganglia
  • Cerebrum
  • Cerebellum
  • Meninges
  • Pineal Gland
  • Pituitary Gland
  • Spinal Cord (Grey Matter)
  • Brainstem
  • Midbrain
  • Pons
  • Medulla Oblongata
  • Pathways
  • Ascending Tracts
  • Descending Tracts
  • Visual Pathway
  • Auditory Pathway
  • Cranial Nerves Summary
  • Olfactory Nerve (CN I)
  • Optic Nerve (CN II)
  • Oculomotor Nerve (CN III)
  • Trochlear Nerve (CN IV)
  • Trigeminal Nerve (CN V)
  • Abducens Nerve (CN VI)
  • Facial Nerve (CN VII)
  • Vestibulocochlear Nerve (CN VIII)
  • Glossopharyngeal Nerve (CN IX)
  • Vagus Nerve (CN X)
  • Accessory Nerve (CN XI)
  • Hypoglossal Nerve (CN XII)
  • Blood Vessels & CSF
  • Arterial Supply
  • Venous Drainage
  • Dural Venous Sinuses
  • Cavernous Sinus
  • Ventricles
  • Neck Areas
  • Anterior Triangle
  • Posterior Triangle
  • Bones
  • Cervical Spine
  • Hyoid Bone
  • Organs
  • Pharynx
  • Larynx
  • Oesophagus
  • Thyroid Gland
  • Parathyroid Glands
  • Muscles
  • Suboccipital
  • Suprahyoids
  • Infrahyoids
  • Scalenes
  • Nerves
  • Phrenic Nerve
  • Cervical Plexus
  • Vessels
  • Arterial Supply
  • Venous Drainage
  • Lymphatics
  • Other
  • Fascial Layers
  • Tonsils (Waldeyer's Ring)
  • Thorax Areas
  • Superior Mediastinum
  • Anterior Mediastinum
  • Middle Mediastinum
  • Posterior Mediastinum
  • Bones
  • Ribs
  • Sternum
  • Thoracic Spine
  • Muscles
  • Thoracic Cage
  • Diaphragm
  • Organs
  • Thymus Gland
  • Mammary Glands
  • Heart
  • Lungs
  • Tracheobronchial Tree
  • Pleurae
  • Vasculature
  • Aorta
  • Superior Vena Cava
  • Back
  • Bones
  • Vertebral Column
  • Muscles
  • Superficial
  • Intermediate
  • Deep
  • Nerves
  • Spinal Cord
  • Upper Limb Areas
  • Axilla
  • Quadrangular Space
  • Triangular Interval
  • Triangular Space
  • Cubital Fossa
  • Ulnar Tunnel
  • Extensor Compartments
  • Ulnar Canal
  • Carpal Tunnel
  • Anatomical Snuffbox
  • Bones
  • Scapula
  • Clavicle
  • Humerus
  • Ulna
  • Radius
  • The Hand
  • Muscles
  • Pectoral Region
  • Shoulder Region
  • Upper Arm
  • Anterior Forearm
  • Posterior Forearm
  • Hand
  • Nerves
  • Brachial Plexus
  • Axillary Nerve
  • Musculocutaneous Nerve
  • Median Nerve
  • Radial Nerve
  • Ulnar Nerve
  • Joints
  • Acromioclavicular Joint
  • Sternoclavicular Joint
  • Shoulder Joint
  • Elbow Joint
  • Radioulnar Joints
  • Wrist Joint
  • Metacarpophalangeal Joint
  • Proximal Interphalangeal Joint
  • Blood Vessels & Lymphatics
  • Arterial Supply
  • Venous Drainage
  • Lymphatics
  • Other
  • Nail Unit
  • Hand Flexor Pulley System
  • Lower Limb Areas
  • Femoral Triangle
  • Femoral Canal
  • Adductor Canal
  • Popliteal Fossa
  • Tarsal Tunnel
  • Bones
  • Femur
  • Patella
  • Tibia
  • Fibula
  • The Foot
  • Muscles
  • Fascia Lata
  • Gluteal Region
  • Thigh
  • Leg
  • Foot
  • Nerves
  • Lumbar Plexus
  • Sacral Plexus
  • Femoral Nerve
  • Obturator Nerve
  • Sciatic Nerve
  • Tibial Nerve
  • Common Fibular Nerve
  • Superficial Fibular Nerve
  • Deep Fibular Nerve
  • Joints
  • Hip Joint
  • Knee Joint
  • Tibiofibular Joints
  • Ankle Joint
  • Subtalar Joint
  • Blood Vessels & Lymphatics
  • Arterial Supply
  • Venous Drainage
  • Lymphatics
  • Other
  • Foot Arches
  • Walking and Gaits
  • Abdomen Areas
  • Abdominal Cavity
  • Calot’s Triangle
  • The Peritoneum
  • Inguinal Canal
  • Hesselbach's Triangle
  • Bones
  • Lumbar Spine
  • Muscles
  • Anterolateral Abdominal Wall
  • Posterior Abdominal Wall
  • GI Tract
  • Oesophagus
  • Stomach
  • Small Intestine
  • Appendix
  • Cecum
  • Colon
  • Rectum
  • Anal Canal
  • Accessory Organs
  • Liver
  • Gallbladder
  • Pancreas
  • Spleen
  • Adrenal Glands
  • Kidneys
  • Mesentery
  • Vasculature
  • Arterial Supply
  • Venous Drainage
  • Pelvis Areas
  • Perineum
  • Sciatic Foramina
  • Bones
  • Hip Bone
  • Pelvic Girdle
  • Sacru
• The Basics

  • Terminology
  • Anatomical Position
  • Body Planes
  • Terms of Movement
  • Terms of Location
  • Embryology Terms
  • Joints Classification
  • Synovial Joint
  • Joint Stability
  • Histology
  • Bone
  • Skeletal Muscle
  • Blood Vessels
  • Nerves
  • Lymphatics
  • Skin
  • Embryology Weeks 1-3
  • Dermatomes
  • Myotomes
• Anatomy by Structure

  • Skeletal
  • Muscular
  • Cardiovascular
  • Nervous
  • Lymphatic
• Head Areas

  • Scalp
  • Cranial Fossae
  • Pterygopalatine Fossa
  • Infratemporal Fossa
  • Mastoid Fossa
• Anatomy

  • Abdominal Wall
  • GI Tract
  • Oesophagus
  • Stomach
  • Small Intestine
  • Appendix
  • Cecum
  • Colon
  • Rectum
  • Anal Canal
  • Accessory Organs
  • Liver
  • Gallbladder
  • Pancreas
  • Spleen
  • Adrenal Glands
  • Kidneys
  • Mesentery
  • Vasculature
  • Arterial Supply
  • Venous Drainage
  • Pelvis Areas
  • Perineum
  • Sciatic Foramina
  • Bones
  • Hip Bone
  • Pelvic Girdle
  • Sacrum
  • Coccyx
  • Sacroiliac Joint
  • Muscles
  • Pelvic Floor
  • Organs
  • Ureters
  • Urinary Bladder
  • Urethra
  • Male Repro
  • Penis
  • Testes and Epididymis
  • Scrotum
  • Spermatic Cord
  • Prostate Gland
  • Bulbourethral Glands
  • Seminal Vesicles
  • Female Repro
  • Vulva
  • Vagina
  • Cervix
  • Uterus
  • Fallopian (Uterine) Tubes
  • Ovaries
  • Supporting Ligaments
  • Vasculature
  • Arterial Supply
  • Venous Drainage
  • Other
  • Sacral Plexus
  • Pudendal Nerve
• Neuroanatomy

  • Structures
  • Basal Ganglia
  • Cerebrum
  • Cerebellum
  • Meninges
  • Pineal Gland
  • Pituitary Gland
  • Spinal Cord (Grey Matter)
  • Brainstem
  • Midbrain
  • Pons
  • Medulla Oblongata
• Neck Areas

  • Anterior Triangle
  • Posterior Triangle
  • Bones
  • Cervical Spine
  • Hyoid Bone
  • Organs
  • Pharynx
  • Larynx
  • Oesophagus
  • Thyroid Gland
  • Parathyroid Glands
  • Muscles
  • Suboccipital
  • Suprahyoids
  • Infrahyoids
  • Scalenes
  • Nerves
  • Phrenic Nerve
  • Cervical Plexus
  • Vessels
  • Arterial Supply
  • Venous Drainage
  • Lymphatics
  • Other
  • Fascial Layers
  • Tonsils (Waldeyer's Ring)
• Back Areas

  • Bones
  • Vertebral Column
  • Muscles
  • Superficial
  • Intermediate
  • Deep
  • Nerves
  • Spinal Cord
• Muscles

  • The Tongue
  • Facial Expression
  • Extraocular
  • Mastication
• Organs

  • The Ear
  • The Eye
  • Nose and Sinuses
  • Salivary Glands
  • Oral Cavity
• Cranial Nerves

  • Summary
  • Olfactory Nerve (CN I)
  • Optic Nerve (CN II)
  • Oculomotor Nerve (CN III)
  • Trochlear Nerve (CN IV)
  • Trigeminal Nerve (CN V)
  • Abducens Nerve (CN VI)
  • Facial Nerve (CN VII)
  • Vestibulocochlear Nerve (CN VIII)
  • Glossopharyngeal Nerve (CN IX)
  • Vagus Nerve (CN X)
  • Accessory Nerve (CN XI)
  • Hypoglossal Nerve (CN XII)
• Body Anatomy

  • Head and Neck
  • Thorax
  • Back
  • Abdomen
  • Upper Limb
  • Lower Limb
  • Female Pelvis
  • Male Pelvis
• Bones

  • Skull
  • Bony Orbit
  • Frontal Bone
  • Sphenoid Bone
  • Ethmoid Bone
  • Temporal Bone
  • Occipital Bone
  • Mandible
  • Nasal Skeleton
  • Cranial Foramina
• Nerves

  • Sympathetic Innervation
  • Parasympathetic Innervation
  • Ophthalmic Nerve
  • Maxillary Nerve
  • Mandibular Nerve
• Anatomy by System

  • Endocrine
  • Gastrointestinal
  • Respiratory
  • Female Reproductive
  • Male Reproductive
  • Urinary
• Imaging

  • X-Ray
  • CT
  • MRI
• Joints

  • TMJ
  • Acromioclavicular Joint
  • Sternoclavicular Joint
  • Shoulder Joint
  • Elbow Joint
  • Radioulnar Joints
  • Wrist Joint
  • Metacarpophalangeal Joint
  • Proximal Interphalangeal Joint
• Blood Vessels & CSF

  • Arterial Supply
  • Venous Drainage
  • Dural Venous Sinuses
  • Cavernous Sinus
  • Ventricles
• Thorax Areas

  • Superior Mediastinum
  • Anterior Mediastinum
  • Middle Mediastinum
  • Posterior Mediastinum
  • Bones
  • Ribs
  • Sternum
  • Thoracic Spine
  • Muscles
  • Thoracic Cage
  • Diaphragm
  • Organs
  • Thymus Gland
  • Mammary Glands
  • Heart
  • Lungs
  • Tracheobronchial Tree
  • Pleurae
  • Vasculature
  • Aorta
  • Superior Vena Cava
• Pathways

  • Ascending Tracts
  • Descending Tracts
  • Visual Pathway
  • Auditory Pathway
• Upper Limb Areas

  • Axilla
  • Quadrangular Space
  • Triangular Interval
  • Triangular Space
  • Cubital Fossa
  • Ulnar Tunnel
  • Extensor Compartments
  • Ulnar Canal
  • Carpal Tunnel
  • Anatomical Snuffbox
  • Bones
  • Scapula
  • Clavicle
  • Humerus
  • Ulna
  • Radius
  • The Hand
  • Muscles
  • Pectoral Region
  • Shoulder Region
  • Upper Arm
  • Anterior Forearm
  • Posterior Forearm
  • Hand
  • Nerves
  • Brachial Plexus
  • Axillary Nerve
  • Musculocutaneous Nerve
  • Median Nerve
  • Radial Nerve
  • Ulnar Nerve
  • Joints
  • Acromioclavicular Joint
  • Sternoclavicular Joint
  • Shoulder Joint
  • Elbow Joint
  • Radioulnar Joints
  • Wrist Joint
  • Metacarpophalangeal Joint
  • Proximal Interphalangeal Joint
  • Blood Vessels & Lymphatics
  • Arterial Supply
  • Venous Drainage
  • Lymphatics
  • Other
  • Nail Unit
  • Hand Flexor Pulley System
• Nerve Joints

  • Acromioclavicular Joint
  • Sternoclavicular Joint
  • Shoulder Joint
  • Elbow Joint
  • Radioulnar Joints
  • Wrist Joint
  • Metacarpophalangeal Joint
  • Proximal Interphalangeal Joint
• Bones

  • Femur
  • Patella
  • Tibia
  • Fibula
  • The Foot
• Other

  • Nail Unit
  • Hand Flexor Pulley System
• Nerves

  • Lumbar Plexus
  • Sacral Plexus
  • Femoral Nerve
  • Obturator Nerve
  • Sciatic Nerve
  • Tibial Nerve
  • Common Fibular Nerve
  • Superficial Fibular Nerve
  • Deep Fibular Nerve
• Vasculature

  • Arterial Supply
  • Venous Drainage
• Bones

  • Lumbar Spine
• GI Tract

  • Oesophagus
  • Stomach
  • Small Intestine
  • Appendix
  • Cecum
  • Colon
  • Rectum
  • Anal Canal
• Other

  • Foot Arches
  • Walking and Gaits