095 Innervations Of The Pectoral Muscles

Leslie Samuel explains the innervation of pectoral muscles, focusing on pectoralis major, pectoralis minor, subclavius, and serratus anterior. He describes the nerves involved, such as the lateral and medial pectoral nerves, the nerve to subclavius, and the long thoracic nerve. Mnemonics are provided to aid memory, and viewers are encouraged to explore further resources on the brachial plexus.

What is the primary focus of the video presented by Leslie Samuel?

• The anatomy of the human heart

• Innovations in pectoral muscle innervation

• The structure of the human brain

• The function of the digestive system

Which nerves innervate the pectoralis major muscle?

• Only the medial pectoral nerve

• Lateral and medial pectoral nerves

• The long thoracic nerve

• Only the lateral pectoral nerve

How is the pectoralis minor muscle innervated?

• By the lateral pectoral nerve

• By the medial pectoral nerve

• By both lateral and medial pectoral nerves

• By the long thoracic nerve

Which nerve is responsible for innervating the subclavius muscle?

• Nerve to subclavius

• Long thoracic nerve

• Medial pectoral nerve

• Lateral pectoral nerve

From which part of the brachial plexus does the nerve to subclavius originate?

• Medial cord

• Lateral cord

• Inferior trunk

• Superior trunk

Which nerve innervates the serratus anterior muscle?

• Lateral pectoral nerve

• Medial pectoral nerve

• Long thoracic nerve

• Nerve to subclavius

What mnemonic is used to remember the roots of the long thoracic nerve?

• C5C6C7 raise your wings up to heaven

• C3C4C5 keep the diaphragm alive

• C1C2C3 control the knee

• C8T1 make a fist and run