BFUN: Labs 1-4

Platysma

Note: Thin, Located in Subcutaneous Neck Tissue

Name the Muscle

Platsyma

Name the Muscle

Sternocleidomastoid

Note: Inserts into Sternam & Clavicle, Originates in Mastoid

Name the Muscle

Sternocleidomastoid

Name the Muscle

Accessory

Note: Innervates Trapezius & Sternocleidomastoid

Name the Nerve

Omohyoid (Infrahyoid Muscle)

Note: Inserts into Upper Scapula, has Superior & Inferior Belly Separated by Intermediate Tendon, Connects to Hyoid Bone

Name the Muscle

Omohyoid

Name the Muscle

Sternohyoid (Infrahyoid Muscle)

Note: Connects Sternum & Hyoid Bone

Name the Muscle

Sternohyoid

Name the Muscle

Sternothyroid (Infrahyoid Muscle)

Note: Connects Sternum & Thyroid Bone

Name the Muscle

Sternothyroid

Name the Muscle

Thyrohyoid (Infrathyroid Muscle)

Note: Connects Thyroid Cartilage & Hyoid Bone

Name the Muscle

Thyrohyoid

Name the Muscle

Digastric (Suprahyoid Muscle)

Note: Has anterior (innervated by V3, mandibular) and posterior belly (innverated by facial nerve) separated by an intermediate tendon

Name the Muscle

Digastric

Name the Muscle

Mylohyoid (Suprahyoid Muscle)

Note: forms floor of mouth, visible deep to anterior digastric belly

Name the Muscle

Stylohyoid (Suprahyoid Muscle)

Note: On Superior Surface of Posterior Digastric Belly

Name the Muscle

Stylohyoid

Name the Muscle

Hypoglossal

Note: Immediately Medial to Intermediate Digastric Tendon

Name the Nerve

Anterior Scalene

Note: anterior to brachial artery & brachial plexus trunks

Name the Muscles (the 2 purple ones close to the front)

Anterior Scalene

Name the Muscle

Middle Scalene

Note: posterior to brachial artery & brachial plexus trunks

Name the Muscle

Middle Scalene

Name the Muscle

Posterior Scalene

Note: inserts into 1st rib, NOT 2nd rib (unlike anterior and middle)

Name the Muscles (the 2 purple ones close to the back)

Posterior Scalene

Name the Muscle

Roots of Brachial Plexus

Note: C5-T1

Name the Nerves

Trunks of Brachial Plexus

Note: remember the superior (C5-C6), middle (C7), and inferior (C8-T1)

Name the Nerves

Left Subclavian

Note: travels between anterior and middle scalene muscles

Name the Artery

Right Subclavian

Note: travels between anterior and middle scalene muscles

Name the Artery

Subclavian

Note: travels anterior to anterior scalene muscles

Name the Vein

Thyrocervical Trunk

Note: second branch of subclavian after vertebral

Name the Arterial Structure

Suprascapular

Note: branch of thyrocervical trunk

Name the Artery

Transverse Cervical

Note: branch of thyrocervical trunk

Name the Artery

Inferior Thyroid

Note: branch of thyrocervical trunk

Name the Artery

Vertebral

Note: first branch of subclavian

Name the Artery

Dorsal Scapular

Note: either deep branch of transverse cervical OR directly comes off subclavian, then travels between trunks of brachial plexus en route to rhomboids & levator scapulae

Name the Artery (Sorry, Can't Find a Better Pic)

Left Common Carotid

Name the Artery

Right Common Carotid

Name the Artery

Carotid Sinus

Note: dilation of most proximal portion of internal carotid (just before it merges with external into common), acts as baroreceptor

Name the Structure

Internal Carotid

Name the Artery

External Carotid

Name the Artery

Superior Thyroid

Note: branch of external carotid

Name the Artery

Lingual

Note: branch of external carotid

Name the Artery

Facial

Note: branch of external carotid, cross inferior margin of mandible

Name the Artery

Submandibular Gland

Name the Artery

Internal Jugular

Note: branch of brachiocephalic vein (other branch is subclavian vein)

Name the Vein

Internal Jugular

Name the Vein

External Jugular

Note: branch of subclavian vein

Name the Vein

External Jugular

Name the Vein

Vagus Nerve

Note: tucked in carotid sheath between common carotid and internal jugular vein

Name the Nerve

Ansa Cervicalis

Note: innervates 3/4 infrahyoid muscles (not thyrohyoid), on anterior surface of carotid sheath, has superior (off C1) and inferior roots (off C3) connected by loop

Name the Nerve

Nerve to Thyrohyoid

Name the Nerve

Parietal Pleura

Note: lines inside of pleural cavity, broken further down into costal/diaphragmatic/mediastinal portions

Label Layer 2

Visceral Pleura

Note: lines lung, cannot be distinguished from lung itself

Label Layer 1

Pleural Cavity

Name the Space

External Intercostal

Note: slanted inferomedially (slant goes down and to the middle of the body)

Name the Muscles

Internal Intercostal

Note: deep to innermost muscles, perpendicular to external

Name the Muscles

Innermost Intercostal

Name the Muscles

Tranverse Thoracis

Name Muscle Group 2

Diaphragm

Name the Structure

Phrenic

Note: kinda hard to distinguish from vagus nerve & sympathetic trunk in distal part, each half innervates ipsilateral diaphragm, runs along anterior scalenes, roots are C3-C5

Name the Nerve

Phrenic

Name the Nerve

Internal Thoracic

Note: branch of subclavian artery and runs along posterior surface of anterior thoracic wall, deep to transverse thoracis

Name the Artery

Internal Thoracic Vein

Note: drains into subclavian vein and runs along posterior surface of anterior thoracic wall, deep to transverse thoracis

Name the Vein

Anterior Intercostal

Name the Arteries (apologies for not finding a better picture, they are quite hard to find since they are very tiny vessels)

Anterior Intercostal

Name the Veins (apologies for not finding a better picture, they are quite hard to find since they are very tiny vessels)

Costomediastinal Recess

Label Space A

Costodiaphragmatic Recess

Label Space B

Costal Demifacet

Note: superior and inferior components, articulates with same # rib's head, specific to thoracic vertebrae

Label the Boney Structure

Transverse Costal Facet

Note: articulates with same # rib's tubercle, specific to thoracic vertebrae

Name the Boney Structure

Left Apex

Label the Lung Segment

Left Superior Lobe

Label the Lung Segment

Left Inferior Lobe

Label the Lung Segment

Left Oblique Fissure

Note: separates superior and inferior lobes

Label the Lung Segment

Lingula

Label the Lung Segment

Cardiac Notch

Label the Notch

Cardiac Impression

Label the Space

Groove for Arch of Aorta

Note: superior to left lung root

Label the Space

Groove for Thoracic Aorta

Note: posterior to left lung root

Label the Space

Left Diaphragmatic Surface

Label the Surface

Left Main Bronchus (Primary)

Label the Segment

Left Lobar Bonchi (Secondary)

Note: has 2 bronchi...superior & inferior

Label the Blue Segment on the Left Side of Chest

Left Pulmonary Artery

Note: usually superior to pulmonary veins in lung root

Label the Artery

Left Pulmonary Veins

Note: contains superior & inferior veins

Label the Veins (Yellow Arrows)

Left Hilar Lymph Nodes

Name This Structure

Left Pulmonary Ligament

Name The Green Arrow

Right Apex

Label the Lung Segment

Right Superior Lobe

Label the Lung Segment

Right Middle Lobe

Label the Lung Segment

Right Inferior Lobe

Label the Lung Segment

Right Oblique Fissure

Note: separates inferior lobe from other 2 lobes

Label the Lung Segment

Right Horizontal Fissure

Note: separates superior from middle lobe

Label the Lung Segment

Right Lung Diaphragmatic Surface

Label the Surface

Right Main Bronchus (Primary)

Label the Segment

Right Lobar Bronchi (Secondary)

Note: has 3 bronchi...superior, middle, & inferior

Label the Blue Segment on the Right Side of Chest

Right Pulmonary Artery

Note: usually superior to pulmonary veins in lung root

Name the Artery

Right Pulmonary Veins

Note: contains superior & inferior veins

Name the Veins

Right Hilar Lymph Nodes

Name This Structure (Yellow Arrow)

Right Pulmonary Ligament

Name The Arrow

Fibrous Pericardium

Name the Layer